Basic Linux Commands

• ls - list files and directories in the current working directory.

omar@omar-pc:~$ ls

code? Desktop? Documents? Downloads? Music? Pictures? Public? snap? Templates? Videos        

• pwd - print the current working directory or path

omar@omar-pc:~$ pwd

/home/omar        

• cd - navigate through directories

omar@omar-pc:~$ cd Downloads

omar@omar-pc:~/Downloads$?        

• mkdir - create directories?

omar@omar-pc:~/MyFolder$ mkdir NewFolder

omar@omar-pc:~/MyFolder$ ls

NewFolder

omar@omar-pc:~/MyFolder$ mkdir Code

omar@omar-pc:~/MyFolder$ ls

Code? NewFolder

        

• mv - move or rename files or directories

# rename

omar@omar-pc:~/MyFolder$ ls

Code? OldFolder

omar@omar-pc:~/MyFolder$ mv OldFolder NewFolder

omar@omar-pc:~/MyFolder$ ls

Code? NewFolder

        

# move

omar@omar-pc:~/MyFolder$ ls
Code? NewFolder

omar@omar-pc:~/MyFolder$ mv Code NewFolder/Code

omar@omar-pc:~/MyFolder$ ls
NewFolder

omar@omar-pc:~/MyFolder$ cd NewFolder/

omar@omar-pc:~/MyFolder/NewFolder$ ls
Code

        

• touch - Create blank/empty file

omar@omar-pc:~/MyFolder/NewFolder$ touch source_file.txt
omar@omar-pc:~/MyFolder/NewFolder$ touch target_file.txt        

• cp?- copying files

cp source_file.txt target_file.txt        

• rm - remove files or directories

omar@omar-pc:~/MyFolder/NewFolder$ rm source_file.txt?         

• rm -rf - remove files or directories

omar@omar-pc:~/MyFolder/NewFolder$ rm -rf Code        

• cat - display file contents on the terminal

omar@omar-pc:~/MyFolder/NewFolder$ cat target_file.txt
new line to copy?        

• clear?- Clear the terminal display

omar@omar-pc:~/MyFolder/NewFolder$ clear?        

• wget?- Direct download files from the internet

omar@omar-pc:~ wget https://media.readthedocs.org/pdf/django/3.2.x/django.pdf
        

• man - Access manual (documentation) pages?of applications.

omar@omar-pc:~ man docker        

• head - show the first 10 lines from the file in terminal

omar@omar-pc:~$ head my_text.txt?

1
2
3
4
5
6
7
8
9
10


        

• tail - show the last 10 lines from the file in terminal

omar@omar-pc:~$ tail my_text.txt
22
23
24
25
26
27
28
29
30
?        

• alias -

omar@omar-pc:~$ alias all_containers="docker ps -a"

omar@omar-pc:~$ all_containers?

CONTAINER ID? ?IMAGE? ? ? ? ? ? ? ? ? ? ? ? ? COMMAND? ? ? ? ? ? ? ? ?