Pattern: Unexpected parameter after condition
Issue: -
ShellCheck found characters (other than redirections) after the ] or ]] in a test expression. This is not valid.
This sometimes happens when there was an additional expression or command, but joining || or && is missing. Alternatively, it could happen due to typos (like [[ $1 ]]] with an extra ]), or generally from malformed test expressions.
Example of incorrect code:
[ "$1" ] input="$1"Example of correct code:
[ "$1" ] && input="$1"