Manpages - xzfgrep.1
NAME
xzgrep - search possibly-compressed files for patterns
SYNOPSIS
xzgrep [/option…/] [/pattern_list/] [/file…/]
xzegrep …
xzfgrep …
lzgrep …
lzegrep …
lzfgrep …
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 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.
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 occurred.
- >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)