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> Shell script static analysis tool.
> Check shell scripts for errors, usage of deprecated/insecure features, and bad practices.
Check a shell script:
shellcheck {path/to/script.sh}
Check a shell script interpreting it as the specified shell dialect (overrides the shebang at the top of the script):
shellcheck --shell {sh|bash|dash|ksh} {path/to/script.sh}
Ignore one or more error types:
shellcheck --exclude {SC1009,SC1073} {path/to/script.sh}
Also check any sourced shell scripts:
shellcheck --checked-sourced {path/to/script.sh}
Display output in the specified format (defaults to `tty`):
shellcheck --format {tty|checkstyle|diff|gcc|json|json1|quiet} {path/to/script.sh}
Enable one or more optional checks:
shellcheck --enable={add-default-case|avoid-nullary-conditions}
List all available optional checks that are disabled by default:
shellcheck --list-optional
> Copyright © 2014—present the tldr-pages team and contributors.
> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).
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