Linux Basic Command Date,cal,bc,tab,ctrl+c,ctrl+d,man

1. The date of the command to display dates:

Date May 24, 2015 Sunday 16:23:05 CST

Date +%y/%m/%d, 2015/05/24
Date +%h:%m 16:26

2. Display the command CAL for the calendar:

Cal,cal 2015,cal 3 2015

3. Calculator: BC:

Scale=3 three digits after decimal point

Quit quitting

4. Hotkey Tab:

Complete the command after the first command of a sequence of commands;

Complete the file after the second command of a sequence of commands.

5.ctrl+c:

Force exit

Ctrl+d:

Keyboard input ends (equivalent to exit when you leave the text interface).

6. Operating Instructions man:

Man date indicates the details of the date command, Space bar page, q exit, home go to the first page, end go to the last page,/string down query string string,? String queries string up, n queries down, n queries up.

The "1" in DATE (1) represents a command or executable file that a user can use in a shelll environment (5 for a configuration file and 8 for administrative commands that are available to the system administrator).

Man-f Date queries the description file for man (or Whatis date), Man-k date queries the description file with the Date keyword (or apropos date).

Linux Basic Command Date,cal,bc,tab,ctrl+c,ctrl+d,man