Linux Commands - Cheat Sheet
ls - List Directory Contents
ls - the ls command is used to list the files and directories in the current directory (you can also use the -l flag to show more detailed information, and the -a flag to show hidden files too)
Example of ls being used
[root@zenith ~]# ls
anaconda-ks.cfg exec_recipe.log helloworld recipe_-1.log recipe_-208.log recipe_-423.log recipe_-569.log
Example of ls with -l and -a flags
[root@zenith ~]# ls -la
total 68
dr-xr-x---. 3 root root 4096 Sep 23 10:52 .
dr-xr-xr-x. 19 root root 4096 Sep 20 13:33 ..
-rw-------. 1 root root 367 Sep 23 17:12 .bash_history
-rw-r--r--. 1 root root 18 May 11 2022 .bash_logout
-rw-r--r--. 1 root root 141 May 11 2022 .bash_profile
-rw-r--r--. 1 root root 429 May 11 2022 .bashrc
-rw-r--r--. 1 root root 100 May 11 2022 .cshrc
-rw------- 1 root root 20 Sep 23 10:52 .lesshst
drwx------ 2 root root 4096 Sep 20 12:16 .ssh
-rw-r--r--. 1 root root 129 May 11 2022 .tcshrc
-rw------- 1 root root 947 Sep 20 13:23 .viminfo
-rw-------. 1 root root 887 Jan 6 2023 anaconda-ks.cfg
-rw-r--r-- 1 root root 79 Sep 20 13:17 exec_recipe.log
-rw-r--r-- 1 root root 20 Sep 20 13:23 helloworld
-rw-r--r-- 1 root root 0 Sep 20 13:17 recipe_-1.log
-rw-r--r-- 1 root root 867 Dec 6 2023 recipe_-208.log
-rw-r--r-- 1 root root 907 Sep 20 13:17 recipe_-423.log
-rw-r--r-- 1 root root 51 Sep 20 13:17 recipe_-569.log
cd - Change Directory
The cd command can be used to navigate between different directories on the file system.
For example, if you're in /home/zarro/ and want to go to the 'Documents' folder, you can type cd Documents
Tip: Use the ~ symbol to return to your home folder. Example: cd ~
pwd - Print Working Directory
The pwd command can be used to display the full path of the current directory that you're in.
Example of pwd:
[root@zenith audit]# pwd
/var/log/audit
mv - Move or Rename Files/Directories
The mv command is primarily used to move files from one location to another, but can also be used to rename a file.
Example moving a file:
[root@zenith ~]# mv helloworld kbarticle/
[root@zenith ~]# ls kbarticle/
helloworld
In this example, we have moved the 'helloworld' file from the Root user directory to the 'kbarticle' folder. We can then verify this by listing the directory contents of 'kbarticle/'
Example renaming a file:
[root@zenith kbarticle]# mv helloworld helloworld2
[root@zenith kbarticle]# ls
helloworld2
In this example, we have renamed the file 'helloworld' to 'helloworld2'. We can verify that this has happened by listing out the directory contents to see the new file name.
