Bash Script

Tag: char

  • Check if an input is numeric or char

     With this script you can check if an argument to a script is numeric, char or alphanumeric. [[ -z “$1” ]] && echo “I cant work without an input” && exit 1 INPUT=”$@” [[ “$INPUT” == ?(+|-)+([0-9]) ]] && echo “$INPUT is numeric” && exit 0 [[ “$INPUT” == +([a-zA-Z]) ]] && echo “$INPUT is…