It appears that you're running an Ad-Blocker. This site is monetized by Advertising and by User Donations
; we ask that if you find this site helpful that you whitelist us in your Ad-Blocker, or make a Donation
to help aid in operating costs.
zgrep invokes grep on compressed or gzipped files. All options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
Posted on May 31st, 2014