backup a path

backup.sh

#!/bin/bash

## Tars up passed directory and uses multiple threads to do so.

usage() {
        echo "This script takes three arguments."
        echo "Usage: $ backup [src loc] [dest loc] [name]"
}

if [ "${1}" = "help" ]; then
        usage
fi

cd $1
tar -c --use-compress-program=pigz -f $2/$3-$(date +%Y_%m_%d_%H_%M_%S).tar.gz $1
# tar -zcvf $2/$3-$(date +%m_%d_%Y_%H_%M_%S).tar.gz $1