linux 查看文件命令

标签：describes   standard   process   linux   system   

1. cat
   

   NAME
          cat - concatenate files and print on the standard output

   SYNOPSIS
          cat [OPTION] [FILE]...

   DESCRIPTION

          -n, --number
                 number all output lines

   [root@bogon ~]# cat -n /etc/inittab
        1    #
        2    # inittab       This file describes how the INIT process should set up
        3    #               the system in a certain run-level.
        4    #
        5    # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
        6    #               Modified for RHS Linux by Marc Ewing and Donnie Barnes

          -E, --show-ends
                 display $ at end of each line

   [root@bogon ~]# cat -E /etc/inittab
   #$
   # inittab       This file describes how the INIT process should set up$
   #               the system in a certain run-level.$
   #$
   # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>$
   #               Modified for RHS Linux by Marc Ewing and Donnie Barnes$

2. more

   NAME
        more - file perusal filter for crt viewing
   
   SYNOPSIS
        more [-dlfpcsu] [-num] [+/ pattern] [+ linenum] [file ...]

   空格键--向后翻1页，翻到最后一页直接退出

   b--向前翻1一页

   回车键--向下翻1行

   不支持向上翻1行

3. less

   和more差不多，比more更方便

   空格键--向后翻1页

   b--向前翻1页

   回车--向下翻1行

   k--向上翻1行

   q-退出

4. head

   NAME
          head - output the first part of files
   
   SYNOPSIS
          head [OPTION]... [FILE]...

   DESCRIPTION
          Print  the first 10 lines of each FILE to standard output.
   

   [root@bogon ~]# head /etc/inittab
   #
   # inittab       This file describes how the INIT process should set up
   #               the system in a certain run-level.
   #
   # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
   #               Modified for RHS Linux by Marc Ewing and Donnie Barnes
   #
   
   # Default runlevel. The runlevels used by RHS are:
   #   0 - halt (Do NOT set initdefault to this)
   

          -n, --lines=[-]N
                 print the first N lines instead of the first 10

   [root@bogon ~]# head -n 5/etc/inittab
   head: 5/etc/inittab: invalid number of lines
   [root@bogon ~]# head -n 5 /etc/inittab
   #
   # inittab       This file describes how the INIT process should set up
   #               the system in a certain run-level.
   #
   # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
   

5. tail

   NAME
          tail - output the last part of files
   
   SYNOPSIS
          tail [OPTION]... [FILE]...
   
   DESCRIPTION
          Print  the  last 10 lines of each FILE to standard output.
   [root@bogon ~]# tail /etc/inittab
   # Run gettys in standard runlevels
   1:2345:respawn:/sbin/mingetty tty1
   2:2345:respawn:/sbin/mingetty tty2
   3:2345:respawn:/sbin/mingetty tty3
   4:2345:respawn:/sbin/mingetty tty4
   5:2345:respawn:/sbin/mingetty tty5
   6:2345:respawn:/sbin/mingetty tty6
   
   # Run xdm in runlevel 5
   x:5:respawn:/etc/X11/prefdm -nodaemon

          -n, --lines=N
                 output the last N lines, instead of the last 10

   [root@bogon ~]# man tail
   [root@bogon ~]# tail -n 5 /etc/inittab
   5:2345:respawn:/sbin/mingetty tty5
   6:2345:respawn:/sbin/mingetty tty6
   
   # Run xdm in runlevel 5
   x:5:respawn:/etc/X11/prefdm -nodaemon
   

          -f, --follow[={name|descriptor}]
                 output appended data as the file grows; -f, --follow, and --follow=descriptor are equivalent

6. cut

   NAME
          cut - remove sections from each line of files
   
   SYNOPSIS
          cut [OPTION]... [FILE]...
   
   DESCRIPTION
          Print selected parts of lines from each FILE to standard output.

          -d, --delimiter=DELIM
                 use DELIM instead of TAB for field delimiter
   
          -f, --fields=LIST
                 select only these fields;  also print any line that contains no delimiter character, unless the -s option is specified

   [root@bogon ~]# cut -d : -f 1 /etc/passwd
   root
   bin
   daemon
   adm
   lp
   sync
   shutdown
   

linux 查看文件命令

标签：describes   standard   process   linux   system   

原文地址：http://vipzyn.blog.51cto.com/886246/1606821