#! /bin/bash

cd /usr/share/nginx/html/learn

export oldVideo=$(cat $1_video.txt)
echo 'oldVideo: '$oldVideo
if [ $oldVideo = 'globe' ];then
cp akam.mp4.bak $1_video.mp4
echo akam > $1_video.txt
echo 'newVideo: akam'
elif [ $oldVideo = 'akam' ];then
cp globe.mp4.bak $1_video.mp4
echo globe > $1_video.txt
echo 'newVideo: globe'
fi;