- Write a script that will print "Got it: " in case of one argument
- In case no arguments were provided, it will print "Usage: ./ "
- In case of more than one argument, print "hey hey...too many!"
#!/usr/bin/env bash
set -eu
main() {
case $# in
0) printf "%s" "Usage: ./<program name> <argument>"; return 1 ;;
1) printf "%s" "Got it: $1"; return 0 ;;
*) return 1 ;;
esac
}
main "$@"