Linux Command Release method

[Account ~]$ command [-options] Parameter1 parameter2 ... directive option parameter (1) parameter (2)

Description: 0. The first input part of a line of instructions is definitely "command" or "executable"

1. Command for the name of the instruction, such as the change path of the instructions for CD and so on;

2. The scratch number [] does not exist in the actual instruction, and when the option is set, usually the option is preceded by a-number, such as-H; sometimes the full full name of the option is used, then the option is preceded by a-symbol, such as--help;

3. Parameter1 Parameter2. A parameter that is attached to the following option, or a command;

4. Instructions, options, parameters, etc. these are separated by a space, no matter how empty the shell is considered a lattice

5. When the [Enter] key is pressed, the command executes immediately. The [Enter] key represents the start of a line of instructions. 6. When the instruction is too long, you can use the backslash (\) to jump off the [Enter] symbol, making the instruction continuous to the next line. Attention! The backslash is immediately followed by a special character to jump off!

Other: A. In a Linux system, the letters in English are not the same. In bowl case, CD shipowner not CD.

Ls-al ~ Show all file properties associated with hidden files in the root directory

Date +%y/%m/%d current system date YYYY/MM/DD

Date +%y%m%d current system date YYYY-MM-DD

Cal [Month] [year]

Cal [Year]

Important several hotkeys [Tab], [Ctrl]-c, [ctrl]-d

[Tab] Write key He has "command complete" does not "file fill" function Oh!

Ca[tab][tab] <==[tab] Write key is immediately after the letter A! (Command Completion)

Ls-al ~/.bash[tab][tab] (file-padded)

[Ctrl]-c button

If you accidentally lose the wrong command, press CTRL + C to stop the command: You can enter find/on the command line, and look at the effect by pressing CTR+C.

[Ctrl]-d button

Keyboard input end, can replace the function of exit

Man Date

The number explained after date

Man-f man left matching exact search

Linux Command Release method