Basic linux commands (New+Old) ..!!

Command: ls

The command “ls” stands for (List Directory Contents), List the contents of the folder, be it file or folder, from which it runs.

root@tecmint:~# ls

Command: lsblk

The “lsblk” stands for (List Block Devices), print block devices by their assigned name (but not RAM) on the standard output in a tree-like fashion.

root@tecmint:~# lsblk

Command: uname

The “uname” command stands for (Unix Name), print detailed information about the machine name, Operating System and Kernel.

root@tecmint:~# uname -a

Command: history

The “history” command stands for History (Event) Record, it prints the history of long list of executed commands in terminal.

root@tecmint:~# history

Command: sudo

The “sudo” (super user do) command allows a permitted user to execute a command as the superuser or another user, as specified by the security policy in the sudoers list.

root@tecmint:~# sudo add-apt-repository ppa:tualatrix/ppa

Command: mkdir

The “mkdir” (Make directory) command create a new directory with name path. However is the directory already exists, it will return an error message “cannot create folder, folder already exists”.

Command: tar

The “tar” command is a Tape Archive is useful in creation of archive, in a number of file format and their extraction.

Command: cal

The “cal” (Calendar), it is used to displays calendar of the present month or any other month of any year that is advancing or passed.

root@tecmint:~# cal 

Command: date

The “date” (Date) command print the current date and time on the standard output, and can further be set.

root@tecmint:~# date

Command: cat

The “cat” stands for (Concatenation). Concatenate (join) two or more plain file and/or print contents of a file on standard output.

root@tecmint:~# cat a.txt b.txt c.txt d.txt abcd.txt

Command: mv

The “mv” command moves a file from one location to another location.

Command: pwd

The command “pwd” (print working directory), prints the current working directory with full path name from terminal.

root@tecmint:~# pwd 

Command: cd

Finally, the frequently used “cd” command stands for (change directory), it change the working directory to execute, copy, move write, read, etc. from terminal itself.

root@tecmint:~# cd /home/user/Desktop