fi HowTo - Linux / Unix Q & A from nixCraft

Bash Shell Script To Test For Empty Folder

last updated July 6, 2012 in BASH Shell

How do I check if a directory contains files? How do I find out if a directory contains files using bash shell under Linux or Unix like operating systems?

Bash Shell: Check File Exists or Not

last updated April 20, 2012 in BASH Shell

How do I test existence of a text file in bash running under Unix like operating systems?

Bash Shell: Find Out If a Variable Is Set or Not

last updated September 25, 2011 in BASH Shell

How do I check if a bash shell variable called $input is defined or not under BSD / Apple OS X / Unix / Linux like operating systems?

Linux / UNIX: Run Commands When You Log Out

last updated November 23, 2010 in Linux, UNIX

I’ve written a Perl script that connects to our central server for me and it allows me feed data so that I make a timesheet later. How do I run my script when I log out from Apple OS X or Linux / UNIX workstation using bash shell?