當找到命令后,通常再按回車鍵就可以執行該命令。
如果想對找到的命令進行調整后再執行,則可以按一下左或右方向鍵。
Press Ctrl+R from the command prompt, which will display the reverse-i-search prompt
(reverse-i-search)`red‘: cat /etc/redhat-release
[Note: Press enter when you see your command, which will execute the command from the history]