Bash Shell Export

Bash is a shell and a simple programming shell too. There are a lot variables built in or externally specified. If a variable is specified...

Linux Su Command Tutorial With Examples

The su short for substitute user command using to change currently logged user.  This makes things practical because the user change made without login. Su command...

How To Add New User Account To Linux

Linux all operations are done with users. In Linux environment to create a file,  start a service, open a network port we need a user with...