<oerjan> learn nur "command argument" is a convenience wrapper for invoking user-given commands with the same argument splitting as HackEso\'s top level. (Mnemonic: opposite of `run)

if [ -z "$1" ];then exec echo "Please give me something to check.";fi;bash -c "if [[ $1 ]];then echo 'True.';else echo 'False.';fi"