does a zgrep exist? (zgrep <> zcat | grep)

[Dan Bernstein]

In article <1991Feb18.075330.15536 at convex.com> tchrist at convex.COM (Tom Christiansen) writes:
> Guys, the original problem was that 
> 	zcat *.Z | grep regexp
> didn't help him identify in which file the match was found.

Yep. The right solution is to have a single-stream format that can
encode multiple files and various information about the files, including
filenames. Then give programs a -f flag to accept input (and produce
output) in that format.

tar and cpio formats are too verbose in some ways and too restricted in
others. In a coming message I will propose an alternative.

---Dan