xzgrep - search compressed files for a regular expression
xzgrep [grep_options] [-e] pattern [file...]
xzgrep invokes grep(1) on files which may be either
uncompressed or compressed with xz(1), lzma(1), gzip(1),
bzip2(1), lzop(1), or zstd(1). All options specified are
passed directly to grep(1).
If no file is specified, then standard input is
decompressed if necessary and fed to grep(1). When reading from
standard input, gzip(1), bzip2(1), lzop(1), and
zstd(1) compressed files are not supported.
If xzgrep is invoked as xzegrep or xzfgrep
then grep -E or grep -F is used instead of grep(1). The
same applies to names lzgrep, lzegrep, and lzfgrep,
which are provided for backward compatibility with LZMA Utils.
- At least one match was found from at least one of the input files. No
- No matches were found from any of the input files. No errors
- One or more errors occurred. It is unknown if matches were found.
- If the GREP environment variable is set, xzgrep uses it
instead of grep(1), grep -E, or grep -F.