Create linux-command-line.md

Author: sjoerdev

content/posts/linux-command-line.md

@@ -0,0 +1,104 @@
+---
+title: "A guide to the Linux command line"
+date: "2025-09-15"
+description: |
+    In this guide i will be going over how the Linux command line works.
+    I will be discussing what parts it is made of and how they all work together.
+    I will also be covering command commands that every person should know.
+    And i will cover the basics of shell scripting.
+
+summary: "In this guide i will be comparing only the major differences between C# and C++"
+ShowToc: true
+TocOpen: true
+ShowBreadCrumbs: true
+---
+
+## Parts of the command line
+
+The linux command line is not one singular thing, it consists of many parts.
+Each having a specific important purpose. Each of these parts is modular and can be swapped out to fit your needs.
+
+**The Terminal:**
+
+The terminal (often called terminal emulator), is a front end interface that allows you to interact with the shell of the system.
+At its core its just a window in which you input text which gets passed down to the shell and then displays the output of the shell.
+The terminal emulator does not understand commands, it just passes input to the shell and renders output.
+Common terminal emulators include: ``Konsole``, ``Kitty``, ``Gnome Terminal``, and ``Ghostty``.
+
+**The Shell:**
+
+The shell is a program that interprets commands and then runs the right programs. 
+It is like the bridge between the user and the kernel. its the most basic form of interacting with your system.
+The most commonly used shell programs are: ``Bash``, ``Zsh``, ``Powershell``.
+
+**The Binaries:**
+
+The shell itself doesnt execute anything, it just interprets a command and then executes the correct binary programs with the correct arguments.
+Each command is just calling one or more of those binary programs.
+So the commands like: ``cd``, ``ls``, ``cat``.
+Are basically just names of executable binaries.
+All major Linux distro's come with a standard set of these commands (binaries).
+Most of these binaries are part one of the following projects: ``gnu-coreutils``, ``util-linux``, ``procps-ng``, ``iproute2``, ``iputils``. and then there are a number of binaries that are their own projects.
+But you can be sure that all major Linux distros come with the binaries of those 5 projects, so if you learn those you are set.
+
+## Commonly used commands
+
+<table>
+    <thead>
+        <tr>
+            <th>Command</th>
+            <th>Project</th>
+            <th>Description</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr><td>ls</td><td>gnu</td><td>List files and directories</td></tr>
+        <tr><td>cd</td><td>bash</td><td>Change the current directory</td></tr>
+        <tr><td>pwd</td><td>gnu</td><td>Print current working directory</td></tr>
+        <tr><td>cp</td><td>gnu</td><td>Copy files or directories</td></tr>
+        <tr><td>mv</td><td>gnu</td><td>Move or rename files/directories</td></tr>
+        <tr><td>rm</td><td>gnu</td><td>Remove files or directories</td></tr>
+        <tr><td>mkdir</td><td>gnu</td><td>Create directories</td></tr>
+        <tr><td>rmdir</td><td>gnu</td><td>Remove empty directories</td></tr>
+        <tr><td>touch</td><td>gnu</td><td>Create empty file or update timestamp</td></tr>
+        <tr><td>cat</td><td>gnu</td><td>Display or concatenate file contents</td></tr>
+        <tr><td>echo</td><td>bash</td><td>Print text to stdout</td></tr>
+        <tr><td>chmod</td><td>gnu</td><td>Change file permissions</td></tr>
+        <tr><td>chown</td><td>gnu</td><td>Change file owner and group</td></tr>
+        <tr><td>find</td><td>gnu</td><td>Search for files in directories</td></tr>
+        <tr><td>grep</td><td>gnu</td><td>Search text in files using patterns</td></tr>
+        <tr><td>ps</td><td>procps-ng</td><td>Show currently running processes</td></tr>
+        <tr><td>kill</td><td>gnu</td><td>Terminate a process by PID</td></tr>
+        <tr><td>uname</td><td>gnu</td><td>Show system and kernel information</td></tr>
+        <tr><td>uptime</td><td>procps-ng</td><td>Show system uptime and load</td></tr>
+        <tr><td>who</td><td>util-linux</td><td>Show who is logged in</td></tr>
+        <tr><td>id</td><td>gnu</td><td>Show user and group IDs</td></tr>
+        <tr><td>groups</td><td>gnu</td><td>List groups for a user</td></tr>
+        <tr><td>tar</td><td>gnu</td><td>Archive or extract files</td></tr>
+        <tr><td>gzip</td><td>gnu</td><td>Compress files</td></tr>
+        <tr><td>gunzip</td><td>gnu</td><td>Decompress gzip files</td></tr>
+        <tr><td>ping</td><td>iputils</td><td>Test network connectivity</td></tr>
+        <tr><td>ip</td><td>iproute2</td><td>Show or configure network interfaces</td></tr>
+        <tr><td>which</td><td>other</td><td>Locate a command in PATH</td></tr>
+        <tr><td>whereis</td><td>util-linux</td><td>Locate binaries, source, and manuals</td></tr>
+        <tr><td>type</td><td>bash</td><td>Show command type information</td></tr>
+        <tr><td>basename</td><td>gnu</td><td>Strip directory path from filename</td></tr>
+        <tr><td>dirname</td><td>gnu</td><td>Strip filename to show directory path</td></tr>
+        <tr><td>xargs</td><td>gnu</td><td>Build and execute commands from input</td></tr>
+        <tr><td>env</td><td>gnu</td><td>Show or set environment variables</td></tr>
+        <tr><td>export</td><td>gnu</td><td>Set environment variables for child processes</td></tr>
+        <tr><td>mount</td><td>util-linux</td><td>Mount disks or drive</td></tr>
+        <tr><td>unmount</td><td>util-linux</td><td>Unmount disks or drive</td></tr>
+        <tr><td>fdisk</td><td>util-linux</td><td>Manages disks or drives</td></tr>
+        <tr><td>curl</td><td>other</td><td>Downloads files from the web</td></tr>
+        <tr><td>wget</td><td>other</td><td>Downloads files from the web</td></tr>
+    </tbody>
+</table>
+
+## Basics of bash and scripting
+
+comming soon...
+
+## Posix and compatibility
+
+comming soon...