The Unix diff command is very handy, but it can do a lot more than just let you know if two files that you’re evaluating are the same or different. It can find and show you the differences and it can ...

Every now and then I come across a feature of some Linux command that works so well that I have trouble understanding how I managed without it for so long. The one that I most recently discovered is ...

For many users who get started with the command line in Linux, there’s a good chance they’re using Bourne Again Shell, or Bash. Bash is the default shell on Mac OS X, and Windows users can use Bash ...

The Linux command line is a text interface to your computer. Also known as shell, terminal, console, command prompts and many others, is a computer program intended to interpret commands. Allows users ...

I have the following bash script which tests 2 jpgs and displays a message if they are different.<br><br> diff -a --brief fullsize.jpg fullsize.jpg.bak<br> echo "diff=$?"<br> if [ $? -eq 1 ]; then<br> ...