Topic

Shell scripting

2 tutorials tagged Shell scripting.

Linux & the Command Line

What is a shebang? #!/bin/bash vs #!/usr/bin/env bash explained

What the #! line at the top of a script does, how the system picks the interpreter, the difference between /bin/bash and /usr/bin/env bash, shebangs for Python and Node, and the 'bad interpreter' error.

12 Nov 2026 · Linux · Bash · Shell scripting

Linux & the Command Line

Shell scripting for beginners: your first Bash script, step by step

Write and run your first shell script: chmod +x, the shebang line, variables, command substitution with $(...), reading user input and arguments ($1, $2), plus export and alias.

10 Nov 2026 · Bash · Shell scripting · Linux