https://meerstory.com/en/tags/linux/Recent content in Linux on MeerStoryHugoen-usSat, 29 Aug 2026 07:11:01 +0900https://meerstory.com/en/ubuntu/20260829_071032_2_ls_ls/Sat, 29 Aug 2026 07:11:01 +0900https://meerstory.com/en/ubuntu/20260829_071032_2_ls_ls/<h2 id="overview">Overview</h2> <p>This guide introduces the core options and practical usage of the <code>ls</code> command, which is the most fundamental command in Linux and Ubuntu environments. Beyond simply listing file names, it covers file organization know-how that can be immediately applied in practice, including detailed file information, human-readable file sizes, hidden file viewing, and sorting techniques.</p> <h2 id="1-basic-file-list-viewing-hidden-files-and-detailed-permissions-ls--l-ls--al">1. Basic File List Viewing, Hidden Files, and Detailed Permissions (ls -l, ls -al)</h2> <p>To create and navigate to a dedicated directory for practicing <code>ls</code> commands and prepare regular and hidden files, run the <code>mkdir -p ~/ls_demo &amp;&amp; cd ~/ls_demo &amp;&amp; touch file1.txt file2.log .hidden_config</code> command.</p>https://meerstory.com/en/ubuntu/20260829_070614_1_ls_al_ls/Sat, 29 Aug 2026 07:06:42 +0900https://meerstory.com/en/ubuntu/20260829_070614_1_ls_al_ls/<h2 id="overview">Overview</h2> <p>The most basic and important command in Linux and Ubuntu terminal environments is <code>ls</code>, which displays files and directories. In this post, we will explore in detail how to use the <code>ls -al</code> option to check file permissions, owners, and even hidden files starting with a dot (<code>.</code>) at a glance, along with practical examples.</p> <h2 id="1-basic-usage-of-ls-and-checking-detailed-file-information-ls-ls--l">1. Basic Usage of ls and Checking Detailed File Information (ls, ls -l)</h2> <p>Run the command <code>mkdir -p ~/ls_demo &amp;&amp; cd ~/ls_demo</code> to create and move into a dedicated workspace for practicing the <code>ls</code> command.</p>