mirror of https://git.tukaani.org/xz.git
xzdiff, xzgrep, and xzmore: Rewrite the man pages.
The main reason is a kind of silly one:
xz-man.pot contains strings from all man pages in XZ Utils.
The man pages of xzdiff, xzgrep, and xzmore were under GPLv2
and the rest under 0BSD. Thus xz-man.pot contained strings
under two licences. po4a creates the translated man pages
from the combined 0BSD+GPLv2 xz-man.pot.
I haven't liked this mixing in xz-man.pot but the
Translation Project requires that all man pages must be
in the same .pot file. So a separate xz-man-gpl.pot
wasn't an option.
Since these man pages are short, rewriting them was quick enough.
Now xz-man.pot is entirely under 0BSD and marking the per-file
licenses is simpler.
As a bonus, some wording hopefully is now slightly better
although it's perhaps a matter of taste.
NOTE: In xzgrep.1, the EXIT STATUS section was written by me
in the commit d796b6d7fd so that's
why that section could be taken as is from the old xzgrep.1.
This commit is contained in:
Lasse Collin
parent
3e551b111b
commit
e48287bf51
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@ -1,66 +1,89 @@
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.\" SPDX-License-Identifier: GPL-2.0-or-later
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.\" SPDX-License-Identifier: 0BSD
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.\"
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.\" Original zdiff.1 for gzip: Jean-loup Gailly
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.\" Authors: Lasse Collin
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.\" Jia Tan
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.\"
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.\" Modifications for XZ Utils: Lasse Collin
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.\" Andrew Dudman
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.\" (Note that this file is not based on gzip's zdiff.1.)
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.\"
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.TH XZDIFF 1 "2021-06-04" "Tukaani" "XZ Utils"
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.TH XZDIFF 1 "2024-02-12" "Tukaani" "XZ Utils"
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.SH NAME
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xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files
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.
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.SH SYNOPSIS
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.B xzcmp
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.RI [ cmp_options "] " file1 " [" file2 ]
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.RI [ option... ]
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.I file1
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.RI [ file2 ]
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.br
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.B xzdiff
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.RI [ diff_options "] " file1 " [" file2 ]
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\&...
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.br
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.B lzcmp
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.RI [ cmp_options "] " file1 " [" file2 ]
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\&...
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.br
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.B lzdiff
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.RI [ diff_options "] " file1 " [" file2 ]
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\&...
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.
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.SH DESCRIPTION
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.B xzcmp
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and
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.B xzdiff
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invoke
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compare uncompressed contents of two files.
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Uncompressed data and options are passed to
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.BR cmp (1)
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or
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.BR diff (1)
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on files compressed with
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unless
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.B \-\-help
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or
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.B \-\-version
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is specified.
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.PP
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If both
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.I file1
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and
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.I file2
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are specified, they can be uncompressed files or files in formats that
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.BR xz (1),
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.BR lzma (1),
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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or
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.BR zstd (1).
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All options specified are passed directly to
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.BR cmp (1)
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or
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.BR diff (1).
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If only one file is specified, then the files compared are
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.BR zstd (1)
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can decompress.
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The required decompression commands are determined from
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the filename suffixes of
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.I file1
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(which must have a suffix of a supported compression format) and
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.I file1
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from which the compression format suffix has been stripped.
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If two files are specified,
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then they are uncompressed if necessary and fed to
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.BR cmp (1)
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or
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.BR diff (1).
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The exit status from
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.BR cmp (1)
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or
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.BR diff (1)
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is preserved unless a decompression error occurs; then exit status is 2.
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and
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.IR file2 .
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A file with an unknown suffix is assumed to be either uncompressed
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or in a format that
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.BR xz (1)
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can decompress.
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.PP
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The names
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If only one filename is provided,
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.I file1
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must have a suffix of a supported compression format and the name for
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.I file2
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is assumed to be
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.I file1
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with the compression format suffix removed.
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.PP
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The commands
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.B lzcmp
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and
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.B lzdiff
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are provided for backward compatibility with LZMA Utils.
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.
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.SH EXIT STATUS
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If a decompression error occurs, the exit status is
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.BR 2 .
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Otherwise the exit status of
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.BR cmp (1)
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or
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.BR diff (1)
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is used.
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.
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.SH "SEE ALSO"
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.BR cmp (1),
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.BR diff (1),
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@ -68,11 +91,4 @@ are provided for backward compatibility with LZMA Utils.
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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.BR zstd (1),
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.BR zdiff (1)
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.SH BUGS
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Messages from the
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.BR cmp (1)
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or
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.BR diff (1)
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programs refer to temporary filenames instead of those specified.
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.BR zstd (1)
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|
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@ -1,18 +1,18 @@
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.\" SPDX-License-Identifier: GPL-2.0-or-later
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.\" SPDX-License-Identifier: 0BSD
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.\"
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.\" Original zgrep.1 for gzip: Jean-loup Gailly
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.\" Charles Levert <charles@comm.polymtl.ca>
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.\" Authors: Lasse Collin
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.\" Jia Tan
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.\"
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.\" Modifications for XZ Utils: Lasse Collin
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.\" (Note that this file is not based on gzip's zgrep.1.)
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.\"
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.TH XZGREP 1 "2022-07-19" "Tukaani" "XZ Utils"
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.TH XZGREP 1 "2024-02-12" "Tukaani" "XZ Utils"
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.SH NAME
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xzgrep \- search compressed files for a regular expression
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xzgrep \- search possibly-compressed files for patterns
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.
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.SH SYNOPSIS
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.B xzgrep
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.RI [ grep_options ]
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.RB [ \-e ]
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.I pattern
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.RI [ option... ]
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.RI [ pattern_list ]
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.RI [ file... ]
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.br
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.B xzegrep
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@ -29,54 +29,83 @@ xzgrep \- search compressed files for a regular expression
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.br
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.B lzfgrep
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\&...
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.
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.SH DESCRIPTION
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.B xzgrep
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invokes
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.BR grep (1)
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on
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on uncompressed contents of files.
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The formats of the
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.I files
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which may be either uncompressed or compressed with
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are determined from the filename suffixes.
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Any
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.I file
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with a suffix supported by
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.BR xz (1),
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.BR lzma (1),
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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or
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.BR zstd (1).
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All options specified are passed directly to
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.BR grep (1).
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.BR zstd (1)
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will be decompressed;
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all other files are assumed to be uncompressed.
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.PP
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If no
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.I files
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are specified or
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.I file
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is specified, then standard input is decompressed if necessary
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and fed to
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.BR grep (1).
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When reading from standard input,
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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and
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.BR zstd (1)
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compressed files are not supported.
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is
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.B \-
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then standard input is read.
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When reading from standard input, only files supported by
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.BR xz (1)
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are decompressed.
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Other files are assumed to be in uncompressed form already.
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.PP
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Most
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.I options
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of
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.BR grep (1)
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are supported.
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However, the following options are not supported:
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.IP "" 4
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.BR \-r ,
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.B \-\-recursive
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.IP "" 4
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.BR \-R ,
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.B \-\-dereference\-recursive
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.IP "" 4
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.BR \-d ,
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.BI \-\-directories= action
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.IP "" 4
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.BR \-Z ,
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.B \-\-null
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.IP "" 4
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.BR \-z ,
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.B \-\-null\-data
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.IP "" 4
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.BI \-\-include= glob
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.IP "" 4
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.BI \-\-exclude= glob
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.IP "" 4
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.BI \-\-exclude\-from= file
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.IP "" 4
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.BI \-\-exclude\-dir= glob
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.PP
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If
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.B xzgrep
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is invoked as
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.B xzegrep
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or
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is an alias for
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.BR "xzgrep \-E" .
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.B xzfgrep
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then
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.B grep \-E
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or
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.B grep \-F
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is used instead of
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.BR grep (1).
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The same applies to names
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is an alias for
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.BR "xzgrep \-F" .
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.PP
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The commands
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.BR lzgrep ,
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.BR lzegrep ,
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and
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.BR lzfgrep ,
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which are provided for backward compatibility with LZMA Utils.
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.B lzfgrep
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are provided for backward compatibility with LZMA Utils.
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.
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.SH EXIT STATUS
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.TP
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0
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@ -90,18 +119,19 @@ No errors occurred.
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>1
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One or more errors occurred.
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It is unknown if matches were found.
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.
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.SH ENVIRONMENT
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.TP
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.B GREP
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If the
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If
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.B GREP
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environment variable is set,
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.B xzgrep
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uses it instead of
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.BR grep (1),
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is set to a non-empty value,
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it is used instead of
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.BR "grep" ,
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.BR "grep \-E" ,
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or
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.BR "grep \-F" .
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.
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.SH "SEE ALSO"
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.BR grep (1),
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.BR xz (1),
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@ -1,52 +1,63 @@
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.\" SPDX-License-Identifier: GPL-2.0-or-later
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.\" SPDX-License-Identifier: 0BSD
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.\"
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.\" Original zdiff.1 for gzip: Jean-loup Gailly
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.\" Modifications for XZ Utils: Lasse Collin
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.\" Authors: Andrew Dudman
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.\" Lasse Collin
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.\"
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.TH XZMORE 1 "2013-06-30" "Tukaani" "XZ Utils"
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.\" (Note that this file is based on xzless.1 instead of gzip's zmore.1.)
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.\"
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.TH XZMORE 1 "2024-02-12" "Tukaani" "XZ Utils"
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.SH NAME
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xzmore, lzmore \- view xz or lzma compressed (text) files
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.
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.SH SYNOPSIS
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.B xzmore
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.RI [ file ...]
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.br
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.B lzmore
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.RI [ file ...]
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.
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.SH DESCRIPTION
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.B xzmore
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is a filter which allows examination of
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displays text from compressed files to a terminal using
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.BR more (1).
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Files supported by
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.BR xz (1)
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or
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.BR lzma (1)
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compressed text files one screenful at a time
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on a soft-copy terminal.
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are decompressed;
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other files are assumed to be in uncompressed form already.
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If no
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.I files
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are given,
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.B xzmore
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reads from standard input.
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See the
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.BR more (1)
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manual for the keyboard commands.
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.PP
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To use a pager other than the default
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.B more,
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set environment variable
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.B PAGER
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to the name of the desired program.
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The name
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Note that scrolling backwards might not be possible
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depending on the implementation of
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.BR more (1).
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This is because
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.B xzmore
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uses a pipe to pass the decompressed data to
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.BR more (1).
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.BR xzless (1)
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uses
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.BR less (1)
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which provides more advanced features.
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.PP
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The command
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.B lzmore
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is provided for backward compatibility with LZMA Utils.
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.
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.SH ENVIRONMENT
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.TP
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.BR e " or " q
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When the prompt \-\-More\-\-(Next file:
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.IR file )
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is printed, this command causes
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.B xzmore
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to exit.
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.TP
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.B s
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When the prompt \-\-More\-\-(Next file:
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.IR file )
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is printed, this command causes
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.B xzmore
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to skip the next file and continue.
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.PP
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For list of keyboard commands supported while actually viewing the
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content of a file, refer to manual of the pager you use, usually
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.B PAGER
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If
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.B PAGER
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is set,
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it's value is used as the pager instead of
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.BR more (1).
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.
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.SH "SEE ALSO"
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.BR more (1),
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.BR xz (1),
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