.shellcheckrc

# Suggest explicitly using -n in `[ $var ]`
enable=avoid-nullary-conditions

# Suggest 'command -v' instead of 'which'
enable=deprecate-which

# Suggest quoting variables without metacharacters
enable=quote-safe-variables

# Require [[ and warn about [ in Bash/Ksh
enable=require-double-brackets

# disable warnings validating ash scripts
disable=SC2187