reverse.sh

#!/bin/bash
# reverse.sh

if [ $# -eq 0 ]; then
    echo "No input log file."
    exit
fi

if [ -f $1 ]; then
    filecnt=0
    while read -r dest
    do
        read -r src
        mv $src $dest
        ((filecnt++))
    done < $1
    echo "Restore $filecnt files."
    rm $1
else
    echo "File not exists."
fi