Adding upstream version 1.8.upstream/1.8upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 88 insertions, 0 deletions

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+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.1.
+.TH ZUPDATE "1" "January 2019" "zupdate (zutils) 1.8" "User Commands"
+.SH NAME
+zupdate \- recompress bzip2, gzip, xz files to lzip format
+.SH SYNOPSIS
+.B zupdate
+[\fI\,options\/\fR] [\fI\,files\/\fR]
+.SH DESCRIPTION
+Zupdate recompresses files from bzip2, gzip, and xz formats to lzip
+format. Each original is compared with the new file and then deleted.
+Only regular files with standard file name extensions are recompressed,
+other files are ignored. Compressed files are decompressed and then
+recompressed on the fly; no temporary files are created. The lzip format
+is chosen as destination because it is the most appropriate for
+long\-term data archiving.
+.PP
+If no files are specified, recursive searches examine the current
+working directory, and nonrecursive searches do nothing.
+.PP
+If the lzip compressed version of a file already exists, the file is
+skipped unless the '\-\-force' option is given. In this case, if the
+comparison with the existing lzip version fails, an error is returned
+and the original file is not deleted. The operation of zupdate is meant
+to be safe and not produce any data loss. Therefore, existing lzip
+compressed files are never overwritten nor deleted.
+.PP
+Exit status is 0 if all the compressed files were successfully
+recompressed (if needed), compared and deleted (if requested). Non\-zero
+otherwise.
+.SH OPTIONS
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+display this help and exit
+.TP
+\fB\-V\fR, \fB\-\-version\fR
+output version information and exit
+.TP
+\fB\-f\fR, \fB\-\-force\fR
+don't skip a file even if the .lz exists
+.TP
+\fB\-k\fR, \fB\-\-keep\fR
+keep (don't delete) input files
+.TP
+\fB\-l\fR, \fB\-\-lzip\-verbose\fR
+pass a \fB\-v\fR option to the lzip compressor
+.TP
+\fB\-M\fR, \fB\-\-format=\fR<list>
+process only the formats in <list>
+.TP
+\fB\-N\fR, \fB\-\-no\-rcfile\fR
+don't read runtime configuration file
+.TP
+\fB\-q\fR, \fB\-\-quiet\fR
+suppress all messages
+.TP
+\fB\-r\fR, \fB\-\-recursive\fR
+operate recursively on directories
+.TP
+\fB\-R\fR, \fB\-\-dereference\-recursive\fR
+recursively follow symbolic links
+.TP
+\fB\-v\fR, \fB\-\-verbose\fR
+be verbose (a 2nd \fB\-v\fR gives more)
+.TP
+\fB\-0\fR .. \fB\-9\fR
+set compression level [default 9]
+.TP
+\fB\-\-bz2=\fR<command>
+set compressor and options for bzip2 format
+.TP
+\fB\-\-gz=\fR<command>
+set compressor and options for gzip format
+.TP
+\fB\-\-lz=\fR<command>
+set compressor and options for lzip format
+.TP
+\fB\-\-xz=\fR<command>
+set compressor and options for xz format
+.SH "REPORTING BUGS"
+Report bugs to zutils\-bug@nongnu.org
+.br
+Zutils home page: http://www.nongnu.org/zutils/zutils.html
+.SH COPYRIGHT
+Copyright \(co 2019 Antonio Diaz Diaz.
+License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
+.br
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law.