Tracing a bash script. Using the xtrace option, every command in a script that is run will be displayed. This option is especially useful when you are debugging a complex script.

On some Linux systems (like Fedora), the script command also makes it possible to separate input from output in your session recording using the -I (or –log-in) and -O (or –log-out) options.

Bash is among the most portable scripting languages, allowing users to write their script on any Unix machine and run it on any other compatible Unix machine. However, there are a few exceptions ...

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… ...

FFmpeg was designed as a cross-platform solution for video and audio recording, conversion, and streaming using simple static command lines. Using variables and 'for loops' in a command string ...

If you need to write a script for repeated use—particularly one with significant logical branching and evaluation—I strongly recommend a "real language" instead of Bash. Luckily, there are ...

Running the script. You have two options: You can run those scripts from within a particular directory, ... Create controlling bash scripts for each of your VMs, so you can start, ...

In this post I'll show you how to create a self extracting bash script to automate the installation of files on your system. This script requires coreutils (for cat, tail), awk, gzip, tar and bash.

When I run script as user it says only only root can use "--options" option. Even though the script is owned by root and it has u+s (like passwd). When I run script as root it works.

In order to avoid this common mistake I often have my shell scripts prompt me for a yes or no answer before they proceed. The function described here is for doing that: asking a question and ...