Manpages - xzgrep.1

xzgrep - search possibly-compressed files for patterns

xzgrep [/option…/] [/pattern_list/] [/file…/]
xzegrep …
xzfgrep …
lzgrep …
lzegrep …
lzfgrep …

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 uncompressed.

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 decompressed. 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 compatibility with LZMA Utils.

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 occurred.

>1

One or more errors occurred. It is unknown if matches were found.

GREP

If GREP is set to a non-empty value, it is used instead of grep, grep -E, or grep -F.

*grep*(1), *xz*(1), *gzip*(1), *bzip2*(1), *lzop*(1), *zstd*(1), *lz4*(1), *zgrep*(1)