zcat - decompress and concatenate files to standard output
zcat [
options] [
files]
zcat copies each file argument to standard output in sequence. If any file given
is compressed, its decompressed content is copied. If a file given does not
exist, and its name does not end with one of the known extensions, zcat tries
the compressed file names corresponding to the formats supported. If a file
fails to decompress, zcat continues copying the rest of the files.
If a file is specified as '-', data are read from standard input, decompressed
if needed, and sent to standard output. Data read from standard input must be
of the same type; all uncompressed or all in the same compressed format.
If no files are specified, recursive searches examine the current working
directory, and nonrecursive searches read standard input.
The formats supported are bzip2, gzip, lzip, xz, and zstd.
Exit status is 0 if no errors occurred, 1 otherwise.
-
-h, --help
- display this help and exit
-
-V, --version
- output version information and exit
-
-A, --show-all
- equivalent to '-vET'
-
-b, --number-nonblank
- number nonblank output lines
- -e
- equivalent to '-vE'
-
-E, --show-ends
- display '$' at end of each line
-
-M, --format=<list>
- process only the formats in <list>
-
-n, --number
- number all output lines
-
-N, --no-rcfile
- don't read runtime configuration file
-
-O, --force-format=<fmt>
- force the input format
-
-q, --quiet
- suppress all messages
-
-r, --recursive
- operate recursively on directories
-
-R, --dereference-recursive
- recursively follow symbolic links
-
-s, --squeeze-blank
- never more than one single blank line
- -t
- equivalent to '-vT'
-
-T, --show-tabs
- display TAB characters as '^I'
-
-v, --show-nonprinting
- use '^' and 'M-' notation, except for LF and TAB
- --verbose
- verbose mode (show error messages)
-
--bz2=<command>
- set compressor and options for bzip2 format
-
--gz=<command>
- set compressor and options for gzip format
-
--lz=<command>
- set compressor and options for lzip format
-
--xz=<command>
- set compressor and options for xz format
-
--zst=<command>
- set compressor and options for zstd format
Valid formats for options '-M' and '-O' are 'bz2', 'gz', 'lz', 'xz', 'zst', and
'un' for uncompressed.
Report bugs to
[email protected]
Zutils home page:
http://www.nongnu.org/zutils/zutils.html
Copyright © 2023 Antonio Diaz Diaz. License GPLv2+: GNU GPL version 2 or
later <
http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.
The full documentation for
zcat is maintained as a Texinfo manual. If the
info and
zcat programs are properly installed at your site, the
command
- info zutils
should give you access to the complete manual.