BashProgramming — by Greg's Wiki (GreyCat)

beginnerpageLink only (©)

Introductory page on writing Bash scripts: scripts need Unix newlines, a first-line shebang and execute permission (chmod +x), followed by how bash parses commands, variables, loops, arithmetic and functions.

Quick steps

chmod +x yourscript.sh
Put the shebang on the first line with no leading whitespace

Paraphrased from the source. Menus can differ by version, so check the original for full details.

Read the full article on mywiki.wooledge.org

Source: BashProgramming by Greg's Wiki (GreyCat). Licence: Link only (©).

Source reviewed: 2026-11-02
Link checked: 2026-11-02
Tested hands-on: Not by Oddbyte.Me

bashchmodshebangscripting

More in Linux Bash

BashGuide/Practices — by Greg's Wiki (mywiki.wooledge.org)

intermediatepage

Community-maintained list of habits for writing reliable Bash scripts: choose the right shebang, quote variables, prefer [[ ]] over [, use $(...) and arrays, avoid parsing ls, and debug with set -x. It points readers on to the BashFAQ and BashPitfalls pages.