For Those Who Are Impatient
the file "lily" is all needed to use the tool script.

Introduction
Lily is named after a girl's name.

Lily is used to preview compressed file before decompressing it. Before
decompressing a tar file, a zip file or whatever compressed file, one
would like to first list the contents of the file using commands like
unzip -l xx.zip, tar -tvf xxx.tar.gz. This script will choose the right
command for commonly used compressed file extension.

TODO
0. judge compressed file format according to file extension name #!
0. evolve to judge compressed file from magic number of a file
0. implement support for .bz2, .deb, and .rpm
0. error detection and notification
1. corresponding compress/decompress tool not found
1. what if egrep is not found
1. wrong input format?
1. any other?
0. man page?
0. deb package to release?
0. print usage information for option -h or --help #!
0. create test script to test Lily against all supported file formats
0. how to create a .rar compressed file? (with 7z?)

Planned Supported File Formats
0. .bz2
0. .7z
0. .zip
0. .tar
0. .tar.bz2
0. .tar.gz
0. .tgz
0. .rar
0. .jar, .war, .ear
0. .deb
0. .rpm