$ whatis gzip

gzip, gunzip, gzcat - compress or expand files

Examples:

# gzip foo.tar

The above command will create the file foo.tar.gz as a compress gzip format. To unzip the file foo.tar.gz file back to the original state, you run the command:

# gunzip foo.tar.gz

# gzip apache2.2.8.tar

The above command will create a gzip compressed file called apache2.2.8.tar.gz.

To unzip the file apache2.2.8.tar.gz file back to the original state, you run the command:

# gunzip apache2.2.8.tar.gz

Please click on " man gzip " to see the Manual Page for this command.