rzgrep

rzgrep is an alias for `zrgrep' in `grep.el'.


(rzgrep REGEXP &optional FILES DIR CONFIRM TEMPLATE)

Recursively grep for REGEXP in gzipped FILES in tree rooted at DIR.
Like `rgrep' but uses `zgrep' for `grep-program', sets the default
file name to `*.gz', and sets `grep-highlight-matches' to `always'.