{"id":96506,"date":"2025-04-16T11:14:40","date_gmt":"2025-04-16T05:44:40","guid":{"rendered":"https:\/\/cloudfoundation.com\/blog\/?p=96506"},"modified":"2025-05-02T10:58:17","modified_gmt":"2025-05-02T05:28:17","slug":"unix-tutorial","status":"publish","type":"post","link":"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/","title":{"rendered":"UNIX Tutorial"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.9.7&#8243;][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_post_title meta=&#8221;off&#8221; featured_image=&#8221;off&#8221; _builder_version=&#8221;4.9.7&#8243; title_font=&#8221;Times New Roman||||||||&#8221; title_text_align=&#8221;left&#8221; title_text_color=&#8221;#000000&#8243; title_font_size=&#8221;47&#8243; background_color=&#8221;RGBA(0,0,0,0)&#8221; background_enable_image=&#8221;off&#8221; custom_margin=&#8221;|||10%&#8221; title_font_size_tablet=&#8221;40&#8243; title_font_size_phone=&#8221;35&#8243; title_font_size_last_edited=&#8221;on|desktop&#8221;][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; text_font=&#8221;Georgia||||||||&#8221; text_text_color=&#8221;#000000&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1.9em&#8221; max_width=&#8221;800px&#8221; max_width_last_edited=&#8221;off|phone&#8221; custom_margin=&#8221;|||10%&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;&#8221; text_font_size_last_edited=&#8221;on|phone&#8221; text_line_height_last_edited=&#8221;off|phone&#8221; sticky_enabled=&#8221;0&#8243;]<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Introduction_to_UNIX\" >Introduction to UNIX<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#UNIX_System\" >UNIX System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#_Log_out_command_in_UNIX\" >\u00a0Log out command in UNIX<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Print_Working_directory_PWD\" >Print Working directory (PWD)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Understanding_Software_Compatibility_Issues_in_Excel\" >Understanding Software Compatibility Issues in Excel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Exploring_the_Cal_and_LS-l_Commands\" >Exploring the Cal and LS-l Commands<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Ls_command_in_UNIX\" >Ls command in UNIX<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Overview_of_UNIX_and_Linux\" >Overview of UNIX and Linux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Introduction_to_UNIX\"><\/span><strong>Introduction to UNIX<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The<a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-unix\/\"><strong> UNIX<\/strong><\/a> operating system is well-recognized and utilised across industries such as automation and <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-devops\/\"><strong>development.<\/strong><\/a><\/p>\n<p>Architecture-wise, it consists of several parts. There&#8217;s the outer core, which handles FTP and email probe protocols and mail handling functions. There is the programming layer, in which <a href=\"https:\/\/cloudfoundation.com\/blog\/unix-shell-scripting-tutorial\/\"><strong>shell commands<\/strong><\/a> write programs or take advantage of available programs in a programming layer environment.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-System-Overview.png\" alt=\"\" width=\"800\" height=\"2424\" \/><\/p>\n<p>The four elements that compose UNIX architecture are its <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-cybersecurity\/\"><strong>protocol<\/strong><\/a>, programming shells and shell programs, <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-linux\/\"><strong>kernel<\/strong><\/a>, and actual physical hardware.<\/p>\n<p>Kernels are an intermediary between actual hardware and shell programs; their connection is crucial for an <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-operating-system\/\"><strong>OS&#8217;s proper functioning<\/strong><\/a>.<\/p>\n<p>Protocol, programming shell and kernel make up UNIX&#8217;s outer wall.<\/p>\n<p>Underneath its outer shell lies the actual hardware. An <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-operating-system\/\"><strong>operating system<\/strong><\/a> must ensure communication with this hardware to function optimally and remain compatible.<\/p>\n<p>These programs may be simple, such as adding two integer records together or performing calculations for a task, or they could be complex, like storing <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-database\/\"><strong>data in memory<\/strong><\/a> or running complex programs.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"UNIX_System\"><\/span><strong>UNIX System<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It illustrates how hardware and software interact through shell commands, kernels for database management systems (DBMSs), and <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-c\/\"><strong>CPP or C++<\/strong><\/a> commands through these channels.<\/p>\n<p>Applications that employ Fusions interact with hardware through the shell, kernel and SOC CPP interfaces.<\/p>\n<p><video poster=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/plugins\/a3-lazy-load\/assets\/images\/lazy_placeholder.gif\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-System-Interaction.webm\" autoplay=\"autoplay\" loop=\"loop\" muted=\"\" width=\"800\" height=\"auto\"><\/video><\/p>\n<p>Software also sends commands to the kernel for interpretation before being sent directly into the machine in understandable language.<\/p>\n<p>The architecture of each system should be explained clearly in order to interact with its hardware.<\/p>\n<p>Many modern architectures resemble or reference the UNIX system for ease of operation and command usage. Understanding its command set will lead to successful and smooth operation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"_Log_out_command_in_UNIX\"><\/span>\u00a0<strong>Log out command in UNIX<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Log out is used to clean and break connections that have remained active on an application and close it, along with closing any related applications or systems.<\/p>\n<p>Log out has four commands: power off, halt, reboot, and shutdown. Power off will shut off immediately, while halt is used if additional time needs to pass before shutting it off completely.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-Logout-Commands.png\" alt=\"\" width=\"800\" height=\"1070\" \/><\/p>\n<p>Reboot your system on its sixth reboot by shutting it entirely off, rebooting six times and finally reinstating.<\/p>\n<p>A shutdown command shuts down and reboots a system within six minutes or powers it back on using predefined scripts. It also provides options to synchronise and clean up using predefined scripts.<\/p>\n<p>You must become the <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-linux\/\"><strong>root user<\/strong><\/a> or superuser before shutting down or powering off a system. This can be accomplished by creating an account with these privileges and one specifically tailored to this action.<\/p>\n<p>Once you have set up a Unix environment on your local system, it can be easily shut off or powered up at will &#8211; but only if its installation was performed locally.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#064399&#8243; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;#0095f2&#8243; background_color_gradient_end=&#8221;#7dbed8&#8243; background_color_gradient_direction=&#8221;92deg&#8221; background_color_gradient_start_position=&#8221;35%&#8221; background_color_gradient_end_position=&#8221;80%&#8221; transform_scale=&#8221;73%|62%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;-53px|-50px&#8221; transform_translate_linked=&#8221;off&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; link_option_url_new_window=&#8221;on&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2023\/06\/SS_436-_Converted_-1.png&#8221; url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; transform_scale=&#8221;114%|112%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;25px|-4px&#8221; transform_translate_linked=&#8221;off&#8221; width=&#8221;98.1%&#8221; custom_margin=&#8221;|7px|||false|false&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;Georgia|700|||||||&#8221; text_font_size=&#8221;23px&#8221; text_line_height=&#8221;1.3em&#8221; header_font=&#8221;Georgia|700|||||||&#8221; header_font_size=&#8221;21px&#8221; header_letter_spacing=&#8221;-1px&#8221; header_line_height=&#8221;2em&#8221; transform_scale=&#8221;171%|159%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;40px|44px&#8221; transform_translate_linked=&#8221;off&#8221; transform_origin=&#8221;70%|50%&#8221; z_index=&#8221;-161&#8243; width=&#8221;100%&#8221; custom_margin=&#8221;|-215px||||&#8221; custom_padding=&#8221;|0px||||&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; link_option_url_new_window=&#8221;on&#8221;]<\/p>\n<h1 style=\"text-align: center;\"><span style=\"color: #ffffff;\">UNIX Training<\/span><\/h1>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; button_text=&#8221;Explore Course Content&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#0C71C3&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_font=&#8221;|700|||||||&#8221; transform_translate=&#8221;64px|65px&#8221; transform_translate_linked=&#8221;off&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2019\/06\/logo_resize_color.png&#8221; url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; transform_translate=&#8221;-36px|0px&#8221; transform_translate_linked=&#8221;off&#8221; custom_margin=&#8221;|||178px||&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; text_font=&#8221;Georgia||||||||&#8221; text_text_color=&#8221;#000000&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1.9em&#8221; max_width=&#8221;800px&#8221; max_width_last_edited=&#8221;off|phone&#8221; custom_margin=&#8221;|||10%&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;&#8221; text_font_size_last_edited=&#8221;on|phone&#8221; text_line_height_last_edited=&#8221;off|phone&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Print_Working_directory_PWD\"><\/span><strong>Print Working directory (PWD)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Unix PWD (Print Working Directory) displays the current working directory to allow users to locate where they are within a filesystem quickly.<\/p>\n<p>Unix provides two different kinds of paths: <a href=\"https:\/\/cloudfoundation.com\/blog\/unix-commands-tutorial\/\"><strong>absolute and relative<\/strong><\/a>. An absolute path begins from the root directory (\/) and shows its full path; conversely, relative paths begin within your current working directory and show their relative locations.<\/p>\n<p><video poster=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/plugins\/a3-lazy-load\/assets\/images\/lazy_placeholder.gif\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/Unix-PWD-Overview.webm\" autoplay=\"autoplay\" loop=\"loop\" muted=\"\" width=\"800\" height=\"auto\"><\/video><\/p>\n<p>Example: From within your Home user directory and looking to access subfolder projects, its relative path would be projects, while its absolute path would be \/Home User Projects<\/p>\n<p>PWD (Print Working Directory) is essential for understanding where you stand in a filesystem, particularly when using commands such as cd (change directory).<\/p>\n<p>Accuracy is imperative to successful navigation when specifying absolute or relative paths with tools such as cd or change directory (cd).<\/p>\n<p>PWD provides users a meaningful way to determine their current directory location when managing files and navigating Unix&#8217;s filesystem.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Understanding_Software_Compatibility_Issues_in_Excel\"><\/span><strong>Understanding Software Compatibility Issues in Excel <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Excel offers advantages and drawbacks; we must understand and address them appropriately to optimise its use efficiently.<\/p>\n<p>Much like traditional command-line interfaces that don&#8217;t suit development environments.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/Excel-Compatibility-Issues-5.png\" alt=\"\" width=\"800\" height=\"2083\" \/><\/p>\n<p>Installation software on UNIX may present several obstacles from a user experience standpoint. These may stem from compatibility issues in the software itself and difficulty installing all required apps into this environment.<\/p>\n<p>In addition to these challenges, installing software on UNIX can also be difficult due to incompatibilities between its programs, making it challenging to install all necessary programs.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Exploring_the_Cal_and_LS-l_Commands\"><\/span><strong>Exploring the Cal and LS-l Commands<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Cal is a tool designed to inform users about current dates, months, days, and times and to display this year&#8217;s current date and year.<\/p>\n<p>The LS-1 Command lists all files and directories within a directory or folder; for specificity, using this command to list the current directory can also help.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/Cal-and-LS-Commands.png\" alt=\"\" width=\"800\" height=\"1037\" \/><\/p>\n<p>To quickly navigate to your current directory, type &#8220;PWD&#8221; followed by &#8220;PWD&#8221;. Alternatively, to list its files and directories, use this command: &#8220;LS minus 1 PWD&#8221;.<\/p>\n<p>Blue files represent blue folders, while properties files reside within their own properties folder. The two should never be confused!<\/p>\n<p>Cal is an indispensable way of staying informed about the current date, month and relevant details.<\/p>\n<p>Users can quickly access the current date and other pertinent details by typing Cal. Furthermore, using LSUS L, users can list all files and directories within a particular folder or directory.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#064399&#8243; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;#ff8c7c&#8221; background_color_gradient_end=&#8221;#e5ba4e&#8221; background_color_gradient_type=&#8221;radial&#8221; background_color_gradient_direction_radial=&#8221;top left&#8221; background_color_gradient_start_position=&#8221;35%&#8221; background_color_gradient_end_position=&#8221;80%&#8221; transform_scale=&#8221;74%|69%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;-53px|-50px&#8221; transform_translate_linked=&#8221;off&#8221; custom_margin=&#8221;||-5px||false|false&#8221; custom_padding=&#8221;|||2px|false|false&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; link_option_url_new_window=&#8221;on&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2023\/06\/8423118_3895895.png&#8221; url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; width=&#8221;85.4%&#8221; custom_margin=&#8221;-31px||-24px||false|false&#8221; custom_padding=&#8221;|22px|0px||false|false&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;Georgia|700|||||||&#8221; text_font_size=&#8221;23px&#8221; text_line_height=&#8221;1.3em&#8221; header_font=&#8221;Georgia|700|||||||&#8221; header_font_size=&#8221;19px&#8221; header_letter_spacing=&#8221;-1px&#8221; header_line_height=&#8221;1.2em&#8221; transform_scale=&#8221;171%|159%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;40px|44px&#8221; transform_translate_linked=&#8221;off&#8221; transform_origin=&#8221;70%|50%&#8221; z_index=&#8221;-161&#8243; width=&#8221;100%&#8221; custom_margin=&#8221;|-215px||||&#8221; custom_padding=&#8221;|0px||||&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/&#8221; link_option_url_new_window=&#8221;on&#8221;]<\/p>\n<h1 style=\"text-align: center;\"><strong>UNIX Online <\/strong>Training<\/h1>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; button_text=&#8221;Up Coming Batches&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#E09900&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_font=&#8221;|700|||||||&#8221; transform_translate=&#8221;64px|65px&#8221; transform_translate_linked=&#8221;off&#8221; background_layout=&#8221;dark&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2019\/06\/logo_resize_color.png&#8221; url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; transform_translate=&#8221;-36px|0px&#8221; transform_translate_linked=&#8221;off&#8221; custom_margin=&#8221;|||178px||&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; text_font=&#8221;Georgia||||||||&#8221; text_text_color=&#8221;#000000&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1.9em&#8221; max_width=&#8221;800px&#8221; max_width_last_edited=&#8221;off|phone&#8221; custom_margin=&#8221;|||10%&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;&#8221; text_font_size_last_edited=&#8221;on|phone&#8221; text_line_height_last_edited=&#8221;off|phone&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ls_command_in_UNIX\"><\/span><strong>Ls command in UNIX<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8220;ls&#8221; is a command typically utilised within Unix environments to list files and folders. It provides additional details regarding ownership and file size information, as well as more details through the minus L option for further elaboration about each file or directory location.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-LS-Command.png\" alt=\"\" width=\"800\" height=\"2086\" \/><\/p>\n<p>To switch users, one must log into a command prompt with sudo access granted to any other IDs and log in as they usually would; to switch back, type &#8220;who am I&#8221; for more details of who&#8217;s currently active.<\/p>\n<p>When browsing with Chrome or Firefox, the username should match the user currently logged in. However, users might occasionally be absent, leading the command prompt to display &#8220;$$&#8221; instead of their names. This might happen if a particular person doesn&#8217;t log in or is unavailable.<\/p>\n<p>Using &#8220;ls,&#8221; users can quickly view and switch between user IDs, including those currently logged on. This lets users quickly identify which user they&#8217;re logging into and switch if necessary.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_UNIX_and_Linux\"><\/span><strong>Overview of UNIX and Linux<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>UNIX Vs <a href=\"https:\/\/cloudfoundation.com\/blog\/what-is-linux\/\"><strong>Linux<\/strong><\/a>: Key Differences<\/p>\n<p>Both operating systems share many similarities in structure and functionalities, yet have distinct qualities. Linux can often be considered a Unix-like system as its design principles resemble those of Unix systems.<\/p>\n<p><video poster=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/plugins\/a3-lazy-load\/assets\/images\/lazy_placeholder.gif\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-and-Linux-Differences.webm\" autoplay=\"autoplay\" loop=\"loop\" muted=\"\" width=\"800\" height=\"auto\"><\/video><\/p>\n<p>Key differences lie in their respective development and licensing arrangements: while UNIX is typically developed and licensed by various vendors, Linux is open-source software managed by global communities &#8211; making it more accessible and customisable by end users and developers.<\/p>\n<p>Linux and UNIX share an identical foundation; their licensing, development and usage differences serve different use cases..<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The UNIX operating system provides a robust foundation used across industries due to its versatility and command line interface.<\/p>\n<p>Understanding its core components\u2014shell, kernel, protocols, and hardware interaction\u2014is crucial for practical system usage and development.<\/p>\n<p><img decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/UNIX-System-Summary.png\" alt=\"\" width=\"800\" height=\"879\" \/><\/p>\n<p>Key Unix commands like PWD, ls, and cal are essential tools that allow users to navigate and manage the system effectively. Other system operations, including shutdown or user management, require appropriate permission and knowledge of Unix commands.<\/p>\n<p>UNIX can present particular challenges for development or system administration purposes, such as software compatibility issues and its steep learning curve compared with graphic interfaces. However, UNIX remains an invaluable tool.<\/p>\n<p>A comparison between UNIX and Linux illuminates their parallel architecture while emphasising their disparate licensing terms and community support, making Linux an easier, more user-friendly choice today for many individuals.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#064399&#8243; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;#494fff&#8221; background_color_gradient_end=&#8221;#9ea6ff&#8221; background_color_gradient_type=&#8221;radial&#8221; background_color_gradient_direction_radial=&#8221;top left&#8221; background_color_gradient_start_position=&#8221;35%&#8221; background_color_gradient_end_position=&#8221;80%&#8221; transform_scale=&#8221;74%|71%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;-53px|-50px&#8221; transform_translate_linked=&#8221;off&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; link_option_url_new_window=&#8221;on&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2023\/06\/Untitled-11.png&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; transform_scale=&#8221;103%|103%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;11px|0px&#8221; transform_translate_linked=&#8221;off&#8221; custom_padding=&#8221;|88px||||&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;Georgia|700|||||||&#8221; text_text_color=&#8221;#FFFFFF&#8221; text_font_size=&#8221;23px&#8221; text_line_height=&#8221;1.3em&#8221; header_font=&#8221;Georgia|700|||||||&#8221; header_font_size=&#8221;19px&#8221; header_letter_spacing=&#8221;-1px&#8221; header_line_height=&#8221;1.2em&#8221; transform_scale=&#8221;171%|159%&#8221; transform_scale_linked=&#8221;off&#8221; transform_translate=&#8221;40px|44px&#8221; transform_translate_linked=&#8221;off&#8221; transform_origin=&#8221;70%|50%&#8221; z_index=&#8221;-161&#8243; width=&#8221;100%&#8221; custom_margin=&#8221;|-215px||||&#8221; custom_padding=&#8221;|0px||||&#8221; link_option_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; link_option_url_new_window=&#8221;on&#8221;]<\/p>\n<h1 style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>UNIX Course Price<\/strong><\/span><\/h1>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; button_text=&#8221;Offer Price&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#0C71C3&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_font=&#8221;|700|||||||&#8221; transform_translate=&#8221;64px|65px&#8221; transform_translate_linked=&#8221;off&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221;][et_pb_image src=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2019\/06\/logo_resize_color.png&#8221; url=&#8221;https:\/\/cloudfoundation.com\/blog\/&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.9.7&#8243; _module_preset=&#8221;default&#8221; transform_translate=&#8221;-36px|0px&#8221; transform_translate_linked=&#8221;off&#8221; custom_margin=&#8221;|||178px||&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_team_member name=&#8221;Navya Chandrika&#8221; position=&#8221;Author&#8221; image_url=&#8221;https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/02\/Navya-Chandrika-e1739945975688.png&#8221; _builder_version=&#8221;4.9.7&#8243; header_level=&#8221;h5&#8243; header_font=&#8221;Titillium Web|700|||||||&#8221; body_font=&#8221;Titillium Web||||||||&#8221; body_font_size=&#8221;16&#8243;]Every second is a new opportunity to shape your future with the choices you make now.[\/et_pb_team_member][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.9.7&#8243;][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_post_title meta=&#8221;off&#8221; featured_image=&#8221;off&#8221; _builder_version=&#8221;4.9.7&#8243; title_font=&#8221;Times New Roman||||||||&#8221; title_text_align=&#8221;left&#8221; title_text_color=&#8221;#000000&#8243; title_font_size=&#8221;47&#8243; background_color=&#8221;RGBA(0,0,0,0)&#8221; background_enable_image=&#8221;off&#8221; custom_margin=&#8221;|||10%&#8221; title_font_size_tablet=&#8221;40&#8243; title_font_size_phone=&#8221;35&#8243; title_font_size_last_edited=&#8221;on|desktop&#8221;][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; text_font=&#8221;Georgia||||||||&#8221; text_text_color=&#8221;#000000&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1.9em&#8221; max_width=&#8221;800px&#8221; max_width_last_edited=&#8221;off|phone&#8221; custom_margin=&#8221;|||10%&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;&#8221; text_font_size_last_edited=&#8221;on|phone&#8221; text_line_height_last_edited=&#8221;off|phone&#8221; sticky_enabled=&#8221;0&#8243;] Introduction to UNIX The UNIX operating [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":96526,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"2880","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-96506","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-uncategorized"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>UNIX Tutorial<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"UNIX Tutorial\" \/>\n<meta property=\"og:description\" content=\"[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.9.7&#8243;][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_post_title meta=&#8221;off&#8221; featured_image=&#8221;off&#8221; _builder_version=&#8221;4.9.7&#8243; title_font=&#8221;Times New Roman||||||||&#8221; title_text_align=&#8221;left&#8221; title_text_color=&#8221;#000000&#8243; title_font_size=&#8221;47&#8243; background_color=&#8221;RGBA(0,0,0,0)&#8221; background_enable_image=&#8221;off&#8221; custom_margin=&#8221;|||10%&#8221; title_font_size_tablet=&#8221;40&#8243; title_font_size_phone=&#8221;35&#8243; title_font_size_last_edited=&#8221;on|desktop&#8221;][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.9.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.9.7&#8243; text_font=&#8221;Georgia||||||||&#8221; text_text_color=&#8221;#000000&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1.9em&#8221; max_width=&#8221;800px&#8221; max_width_last_edited=&#8221;off|phone&#8221; custom_margin=&#8221;|||10%&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; hover_enabled=&#8221;0&#8243; text_font_size_tablet=&#8221;&#8221; text_font_size_phone=&#8221;&#8221; text_font_size_last_edited=&#8221;on|phone&#8221; text_line_height_last_edited=&#8221;off|phone&#8221; sticky_enabled=&#8221;0&#8243;] Introduction to UNIX The UNIX operating [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cloudfoundation.com\/blog\/unix-tutorial\/\" \/>\n<meta property=\"og:site_name\" content=\"CloudFoundation | Blog\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-16T05:44:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-02T05:28:17+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/04\/unix-featured-image.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"NAGENDRAG\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"NAGENDRAG\" \/>\n\t<meta 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