XZGREP(1) XZ Utils XZGREP(1)
NAME
xzgrep - search possibly-compressed files for patterns
SYNOPSIS
xzgrep [option...] [pattern_list] [file...]
xzegrep ...
xzfgrep ...
lzgrep ... (DEPRECATED)
lzegrep ... (DEPRECATED)
lzfgrep ... (DEPRECATED)
DESCRIPTION
xzgrep invokes grep(1) on uncompressed contents of files. The formats
of the files are determined from the filename suffixes. Any file with a
suffix supported by xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), or
lz4(1) will be decompressed; all other files are assumed to be uncom-
pressed.
If no files are specified or file is - then standard input is read.
When reading from standard input, only files supported by xz(1) are de-
compressed. Other files are assumed to be in uncompressed form already.
Most options of grep(1) are supported. However, the following options
are not supported:
-r, --recursive
-R, --dereference-recursive
-d, --directories=action
-Z, --null
-z, --null-data
--include=glob
--exclude=glob
--exclude-from=file
--exclude-dir=glob
xzegrep is an alias for xzgrep -E. xzfgrep is an alias for xzgrep -F.
The commands lzgrep, lzegrep, and lzfgrep are provided for backward com-
patibility with LZMA Utils. They are deprecated and will be removed in
a future version.
EXIT STATUS
0 At least one match was found from at least one of the input
files. No errors occurred.
1 No matches were found from any of the input files. No errors oc-
curred.
>1 One or more errors occurred. It is unknown if matches were
found.
ENVIRONMENT
GREP If GREP is set to a non-empty value, it is used instead of grep,
grep -E, or grep -F.
SEE ALSO
grep(1), xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), lz4(1), zgrep(1)
Tukaani 2025-03-06 XZGREP(1)
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