man 命令用於檢視幫助文件，其格式為：man  [命令] 示例如下：

[[email protected] ~]# man ls
LS(1)                                                                        User Commands                                                                        LS(1)

NAME
       ls - list directory contents

SYNOPSIS
       ls [OPTION]... [FILE]...

DESCRIPTION
       List information about the FILEs (the current directory by default).  Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.

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

       -a, --all
              do not ignore entries starting with .

       -A, --almost-all
              do not list implied . and ..

       --author
              with -l, print the author of each file

       -b, --escape
              print C-style escapes for nongraphic characters

       --block-size=SIZE
              scale sizes by SIZE before printing them; e.g., '--block-size=M' prints sizes in units of 1,048,576 bytes; see SIZE format below

       -B, --ignore-backups
              do not list implied entries ending with ~

       -c     with  -lt:  sort  by,  and  show,  ctime (time of last modification of file status information); with -l: show ctime and sort by name; otherwise: sort by
              ctime, newest first

 

如果不能完整顯示，可以按 PgDn 鍵下翻頁。退出幫助文件，按字母鍵q