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#!/bin/bash

editor=vi

if [ $# -eq 0 ]
then
   echo "usage: `basename $0` file"
   exit 1
fi

file=$1

timestamp=`stat -c %y "$file" | cut -d. -f1 | cut -d" " -f1 | awk -F- '{print $1 $2 $3}'``stat -c %y "$file" | cut -d. -f1 | cut -d" " -f2 | awk -F: '{print $1 $2 "." $3}'`

"$editor" "$file"

touch -t $timestamp "$file"