#!/bin/bash

# V 0.1.0 050723 adddate.sh
#
# Licensed under GPL
#
#  ˘  ˘
#  ˘ ˘
#  ˘     ˘˘  ˘  ˘  ˘˘   ˘˘     ˘˘   ˘˘   ˘˘
#  ˘ ˘  ˘  ˘ ˘  ˘ ˘  ˘ ˘  ˘   ˘  ˘ ˘  ˘ ˘  ˘
#  ˘  ˘ ˘     ˘˘  ˘  ˘  ˘˘˘ ˘  ˘˘  ˘     ˘˘˘
#                         ˘                ˘
#        martin         ˘˘     krung     ˘˘
#
# ++++++++++++++++++++++++++++++++++++++++++++++++
#
#  USAGE
#  bash adddate.sh folder
#
#  REQUIRE
#  stat,mv

# set filename

if [ -n "$1" ];then

file=$1

# read date out of file
datum=`stat -c %y $file`
#echo timestamp: $datum

$file=´echo $file | -r s#[^[:alnum:]]#_#g | sed -r s#_+#_#g´

echo $file

# extract day,month,year
day=${datum:8:2}
month=${datum:5:2}
year=${datum:2:2}

date=${year}${month}${day}
#echo $date
#mv -v $file ${date}_${file}

else 
	echo DESC
	echo macht ordern zu datum_order
	echo macht ordern zu 030404_order
	echo
	echo USAGE
	echo  bash adddate.sh folder
	
fi