It's recommended to first refer to the official instructions regarding using ShellCheck with Travis CI.
For a truly simple configuration, place the following in your .travis.yml:
language: shell
script:
- bash -c 'shopt -s globstar nullglob; shellcheck **/*.{sh,ksh,bash}'Note:
Travis CI has now integrated ShellCheck by default, so you don't need to manually install it.
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.