shellcheck

Shell script static analysis tool. More information: https://www.shellcheck.net/.

• Check a shell script:

shellcheck {{file.sh}}

• Override script's shebang:

shellcheck --shell {{sh|bash|ksh}} {{file.sh}}

• Ignore certain errors:

shellcheck --exclude {{SC1009}} {{file.sh}}

• Ignore multiple errors:

shellcheck --exclude {{SC1009,SC1073}} {{file.sh}}