tar

tgz is a tar bundle, that is zipped

Prepare a Folder of Files

mkdir files2tar
mv messages.* files2tar/

Create Zipped Tar

tar -czfv destfile.tgz files2tar/

View Zipped Tar

tar -tvf destfile.tgz | grep something

Extract Zipped Tar

tar -xvzf destfile.tgz