Application moves files to the specified thrash directory one of following ways:
- before the specified file
- after the specified file
- between the 2 specified files
- revert all deleted files back to the default directory
node index.js delete between myfile0200.txt myfile0202.txt
node index.js delete before myfile0202.txt
node index.js delete after myfile0202.txt
node index.js revert