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What is a bash script

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Jean-Michel Gigault edited this page Jan 8, 2015 · 21 revisions

What is a bash script

A bash script is a simple file that contains ASCII text intended to be interpreted by the program bash, allowing you to do a logical sequence of actions by calling a simple line command instead of typing them one at a time in the shell.

The first line of a script should always tell the shell which program should interpret it:

\#!/bin/bash
echo "Hello World, I am a 42 student!"

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Introduction:

Bash syntax:

Bash tools:

  • Builtin commands
  • Awk
  • Cat
  • Grep
  • Sed

Bash sample codes:

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