Scripts that behave

4 lessons in the Bash course.

Full Bash course · Search this topic · Operating systems

• FunctionsGroup logic into functions with local variables and clear return status.
• Exit CodesUse exit statuses so scripts and callers know success from failure.
• Pipes and Redirects in ScriptsWire commands together and manage stdout/stderr inside scripts.
• set -euo pipefailTurn on safer Bash defaults that catch common scripting mistakes.