ScriptingLesson 45Free preview

Bash Script

This lesson is part of Bash · All levels

Summary

A Bash script is a text file that contains a sequence of commands running in sequence. The script is usually started with the #!/bin/bash, given execution permission, and then executed with./skrip.sh or by the bash command. The $ variable displays the final output code to check for success.

Key points

The first line #!/bin/bash specifies the interpreter
Chmod +x skrip.sh gives permission for the execution
Run with./skrip.sh or bash skrip.sh
$? contains the last output code, 0 means success

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