Zcat is a command line utility for viewing the contents of a compressed file without literally uncompressing it. It expands a compressed file to standard output allowing you to have a look at its contents. In addition, zcat is identical to running gunzip -c command.
zgrep
Zgrep is a Linux command that is used to search the contents of a compressed file without uncompressing it. This command can be used with other options to extract data from the file, such as wildcards.
