Shell Programming and Scripting

[ $# -eq 1 ] || {
  printf 'you must provide exactly %d parameter\n' 1
  exit 1
  }

function listDirectory 
{
    echo "Give in a directory name"

    read name

    if [ $# -eq 1 ]; then

        if [ -d "$name" ]; then
            echo "Directory exists. Content: "
            ls "$name"
        else
            echo "Directory doesn't exist."
            exit
        fi
    else
        echo "More than one param. "
        exit
    fi

}
listDirectory

#!/bin/bash

if [ $# -eq 1 ]; then

        if [ -d  ]; then
            echo "Correct. Content of the directory:"
            echo
            # HERE I WANT TO LIST THE CONTENT OF THE DIRECTORY
        else
            echo "Directory doesn't exist."
              exit
        fi
else
      echo "More than 1 param."
fi

[ -d "$1" ] ...

ls -l -- "$1"