Linux command line and vim simple learning record

Linux command line

1. Open the command line

　　Ctrl+alt+t

2. Catalogue

• Displays a list of files for the current directory

　　　　Ls

• Jump to the X folder in the current directory

　　　　CD x

• Return to the root directory

　　　　Cd

3. Documents

• New File 1.cpp

　　　　Touch./1.cpp

• Open File 1.cpp with vim

　　　　Vim./1.cpp

• Compiling files with g++ 1.cpp

　　　　g++./1.cpp (The executable file named "1.out" is generated after compiling)

• Compile file 1.cpp with g++ as an executable file named "1"

　　　　g++./1.cpp-o./1-g

• Compile when using the random number template

　　　　g++./1.cpp-o./1-g-std=c++0x (New version: g++/1.cpp-o./1-g-std=c++11 )

• Run the executable file 1

　　　　./1

• To pass file 1.in as an input file to an executable file 1

　　　　./1 <1.in

• Pass file 1.in as input file to executable file 1 and output to file 1.out

　　　　./1 <1.in >1.out

• Continuously run the executable file gen output to file in, and each time with in as input file input to 1 and 22 executables, respectively output to 1.out,2.out, and compare two output files is the same (on the shoot, different words will stop)

　　　　While ./gen >in && 1 <in >out1 &&./2 <in >out2 && diff -W./OUT1/out2;do Echo Ok;done (-W: Ignore extra carriage return spaces)

Vim's simple operation

1. Toggle Mode

• To "Watch" mode (cannot change, can enter in this mode with many strange instructions to do many strange things)

Esc

• To edit mode

　　　　I (to the front of the cursor)

　　　　a (after the cursor)

　　　　s (as if to remove something)

　　　　a (to the end of the line)

2. Instructions that can be used for pre-set

• You can use the mouse (delete with D after the mouse is selected)

　　　　: Set Mouse=a

• Auto Indent (Form C indent)

　　　　: Set AI cin

or : Set cindent

Cancel : Set Nocindent

• Set indent Length (default = 8)

　　　　: Set ss=4 sw=4 ts=4

• Show line Numbers

　　　　: Set Nu

: Set Number

3. Other

• Undo Action

　　　　U

• Save (write)

　　　　: W

• Exit (need to save first)

　　　　: Q

• Force exit (when not saved)

　　　　: q!

• Save and exit

　　　　: QW

or : x

• Return to command line (not saved)

　　　　: SH

Back to file ctrl+d

• Find character x

　　　　/x

Finds the next character X /A

Find previous character x ? x

Continue looking for characters x n in the current direction

Open Find highlight : Set HLS

Turn off find highlighting : Set Nohls

• Area selected

　　　　Ctrl + V (then use the upper and lower left and right operation) (Direct V is the normal selection)

Use x instead of the selected area r+x

• Vertical split Screen

　　　　Vs+filename

or vsp+filename

Press C after closing the current split screen ctrl+w

Close all other split screen ctrl+w outside the current split screen and press o

Linux command line and vim simple learning record