2025-12-12
What Does the First Line of a Linux Script Mean? #!/usr/bin/env bash vs #!/bin/bash – Differences and Usage
This article explains the differences between the common first lines `#!/usr/bin/env bash` and `#!/bin/bash` in Linux scripts, covering their meanings, pros and cons, when to use each, practical tips, and common misconceptions. It’s a must‑read for anyone writing or maintaining shell scripts.
