backupScript/backup.sh at main · christopherdonner/backupScript · GitHub

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#!/bin/bash

if [[ $# != 2 ]]
then
  echo "backup.sh target_directory_name destination_directory_name"
  exit
fi

if [[ ! -d $1 ]] || [[ ! -d $2 ]]
then
  echo "Invalid directory path provided"
  exit
fi

targetDirectory=$1
destinationDirectory=$2
echo $targetDirectory
echo $destinationDirectory
currentTS=`date +%s`
backupFileName="backup-[$currentTS].tar.gz"
origAbsPath=$(pwd)
cd $destinationDirectory
destDirAbsPath=$(pwd)
cd $origAbsPath
cd $targetDirectory

let yesterdayTS=$currentTS-86400

declare -a toBackup
for file in $(ls)
do
  if ((`date -r $file +%s` > $yesterdayTS))
  then toBackup+=($file)
  fi
done

tar -czvf $backupFileName ${toBackup[@]}

mv ./$backupFileName $destDirAbsPath/$backupFileName