It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t pres… ...

Next month, I'll demonstrate how the exit command lets you send exit codes back to the calling program from procedures and functions, just as if they were separate Linux commands rather than part of ...

Shell scripts are not compiled — at least, not typically — so the shell only reads what it needs to do the work. That means if your script is careful to exit, you can add as much “garbage ...

hey all, I need to set up a shell script that ssh's into a remote server then runs some commands. I have minimal control over the remote server, and only ...

In the conditional, you probably would put a usage statement and an exit command. For my script, I actually also test to ensure that there are a minimum of two arguments on the command line as well, ...

I would expect that if any of the three background jobs exits none-zero then all background jobs and the parent shell script should exit. This is not happening.

Looping forever is easy if you know what commands you want to run repeatedly and the conditions under which you want them to stop running.

Dive into the world of Linux shell scripting with this hands-on guide. If you’re comfortable using the command line on Unix or Linux but haven’t fully explored Bash, this book is for you.

It's not hard to create and run a shell script in Linux distros like Ubuntu, but there are a few non-obvious pitfalls you need to avoid. Here's a quick example of how to execute a script in Linux.

When you install Python on Mac, the system adds it to your path by default. If you can't run your Python commands from the terminal, something may have gone wrong during the installation process or ...