Ubuntu16.04LTS使用-2018-07-13

1. 不知道复制用什么键

parallels@panda:~$ bash
parallels@panda:~$ help bash
bash: help: no help topics match `bash'.  Try `help help' or `man -k bash' or `info bash'.
parallels@panda:~$ man -k bash
bash (1)             - GNU Bourne-Again SHell
bash-builtins (7)    - bash built-in commands, see bash(1)
bashbug (1)          - report a bug in bash
builtins (7)         - bash built-in commands, see bash(1)
dh_bash-completion (1) - install bash completions for package
rbash (1)            - restricted bash, see bash(1)
parallels@panda:~$ ^C
parallels@panda:~$ ^C^C
parallels@panda:~$ ^C
parallels@panda:~$ A^C
parallels@panda:~$ history
    1  sudo poweroff
    2  help bash
    3  man -k bash
    4  history
parallels@panda:~$ ^C
parallels@panda:~$ 

/bin/目录下的命令
/sbin/目录下的命令