Linux下寻求帮助-蒲公英云

Linux下寻求帮助

一 help

内部命令，Shell提供，寻求帮助可以用help，如help echo

外部命令，Shell不提供，Shell调用，XX –help，如ls –help

二 man

man XX

[root@wentasy root]# man 7 man
      The manual sections are traditionally defined as follows:
              1 Commands
                        Those  commands  that can be executed by the user from
                        within a shell.
              2 System calls
                        Those functions which must be performed by the kernel.
              3 Library calls
                        Most of the libc functions, such as qsort(3))
              4 Special files
                        Files found in /dev)
              5 File formats and conventions
                        The  format  for  /etc/passwd and other human-readable
                        files.
              6 Games
              7 Macro packages and conventions
                        A description of the standard file system layout, net-
                        work  protocols, ASCII and other character codes, this
                        man page, and other things.
              8 System management commands
                       Commands like mount(8), many of which  only  root  can
                        execute.
              9 Kernel routines
                        This  is  an  obsolete  manual  section.   Once it was
                        thought a good idea to document the Linux kernel here,
                        but  in  fact very little has been documented, and the
                        documentation that exists is outdated  already.  There
                        are  better sources of information for kernel develop-
                        ers.

三 info

info ls：和man page类似，比man page多一个功能，可以链接，带*号的，按回车链接可以过去，Shfit+u返回

四 ReadMe文件

软件全套的RedeMe文件：ls /usr/share/doc/XXX

[root@wentasy root]# ls /usr/share/doc/
Display all 729 possibilities? (y or n)

五 howto文档

http://tldp.org/HOWTO/HOWTO-INDEX/howtos.html

http://man.chinaunix.net/linux/how/HOWTO-INDEX-3.html

tldp.org

http://tldp.org/

六 Google

Google：适合英文关键字，推荐使用，多翻几页可以翻到英文的帮助文档

七百度

Baidu：适合中文关键字

记住这句话：

菜鸟总是问别人，高手总是快速的寻求帮助。

附几个快捷键

Ctrl + C：停止进程

Ctrl + Z：暂停

Ctrl + L：清屏

Ctrl + S：不管输入什么没反应，直到输入Ctrl+Q退出此状态

Ctrl + R：追踪命令历史，搜索历史

/-X：快速搜索，n顺序往下查找，shift+N往上查找


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