Bash unzip script

				
					#!/bin/bash
# script to decompress zips and copy used zips to dir

# the important directories
my_zip_dir="/home/USER/zip_dir"
my_pict_dir="/home/USER/pict_dir"


# the testing ----------------------------------------
# are there zip files
ls *.zip > /dev/null 2>&1 

if [ $? -eq 0 ]; then
    echo "zip files present, programm continues"
else
    echo ERROR: no zip files found programm stops
    exit 1
fi


# does pict dir exist
if [ -d "$my_pict_dir" ]; then
  	echo " ${my_pict_dir}..already there everything ok"
else
	echo ERROR: picture dir doesnot exists programms stops
    exit 1
fi


# does zip dir exists
if [ -d "$my_zip_dir" ]; then
  	echo " ${my_zip_dir}..already there"
else
	mkdir  "$my_zip_dir"
fi

# end of testing ---------------------------------------------


# the unzipping ---------------------------------------------
for i in *.zip;
	do filename=$(basename "$i")
	extension="${filename##*.}"
	filename="${filename%.*}"
	echo "$filename"

	DIR=/home/USER/target_dir/"$filename"
    
    if [ -d "$DIR" ]; then
  		echo " ${DIR}..already there"
	else
		mkdir  "$DIR"
	fi

	if [ $? -eq 0 ]; then
		unzip -nq "$i"  -d  "$DIR" 
	
		if [ $? -eq 0 ]; then
			echo "unzip ok"
			mv  "$i" "$my_zip_dir"
		else
			echo "unzip failed"
		fi
	else
		echo "could not make dir ${DIR} "
	fi
done
# ----------------------------------------------------------------
echo programm ended