zcat명령어의 도움말 정보 확인하기

[root@su250 sulinux]# zcat -h

Usage: gzip [OPTION]... [FILE]...

Compress or uncompress FILEs (by default, compress FILES in-place).

Mandatory arguments to long options are mandatory for short options too.

  -c, --stdout      write on standard output, keep original files unchanged

  -d, --decompress  decompress

  -f, --force       force overwrite of output file and compress links

  -h, --help        give this help

  -l, --list        list compressed file contents

  -L, --license     display software license

  -n, --no-name     do not save or restore the original name and time stamp

  -N, --name        save or restore the original name and time stamp

  -q, --quiet       suppress all warnings

  -r, --recursive   operate recursively on directories

  -S, --suffix=SUF  use suffix SUF on compressed files

  -t, --test        test compressed file integrity

  -v, --verbose     verbose mode

  -V, --version     display version number

  -1, --fast        compress faster

  -9, --best        compress better

    --rsyncable   Make rsync-friendly archive

With no FILE, or when FILE is -, read standard input.

Report bugs to <bug-gzip@gnu.org>.

[root@su250 sulinux]#