php_escapeshellarg() adds single quotes around a string and quotes/escapes any existing single quotes allowing you to pass a string directly to a shell function and having it be treated as a single ...

Last month, I explored exit codes and how decent error correction in your shell scripts always should include testing the value of $? after each meaningful command ...

If you often use the command line on Linux, you’ve probably wished for a quicker way to navigate directories and view their contents. Typically, this involves running cd to change directories and then ...

If you've been keeping track of my column, you'll know that we're building a Blackjack game as a shell script. Why? Because most shell scripts are far too boring to study without nodding off, so ...