Find files that match a pattern and copy them

cpfind.sh

#!/bin/bash


while getopts "r:p:o:" flag; do
    case "$flag" in
    	   # Where to stert searching.
        r) ROOT=$OPTARG;; 
           # The pattern.
        p) NAME=$OPTARG;;
           # where to store the findings.
        o) OUTPUT=$OPTARG;;
    esac
done


if [[ -z "$NAME" ]]; then
	echo "Missing argument [-p pattern]"
	exit 1
fi

if [[ -z "$OUTPUT" ]]; then
	echo "Missing argument [-O output_dir/]"
	exit 1
fi

if [[ ! $OUTPUT =~ "/" ]]; then
   OUTPUT+="/"
fi

if [ -z "$ROOT" ]; then 
	ROOT="$PWD" 
fi

mkdir "$OUTPUT" 2> /dev/null

find "$ROOT" -type f -iname "$NAME" -exec cp "{}" $OUTPUT \;
#ls $OUTPUT | sort