$ foodcritic -f any .
Checking 1 files
x
FC078: Ensure cookbook shared under an OSI-approved open source license: ./metadata.rb:1
$ $?
-bash: 0: command not found
But if you break some more rules:
$ foodcritic -f any .
Checking 1 files
x
FC066: Ensure chef_version is set in metadata: ./metadata.rb:1
FC067: Ensure at least one platform supported in metadata: ./metadata.rb:1
FC078: Ensure cookbook shared under an OSI-approved open source license: ./metadata.rb:1
$ $?
-bash: 3: command not found
Looks like epic-fail ignores FC078:
But if you break some more rules: