Linux Basic Bash command

1. View file size, memory size, CPU information, hard disk space

• command to display all file sizes for the current directory: LS-LHT

• Memory space, CPU information, hard disk space: Htop, Top (Htop detailed reference: http://blog.csdn.net/skh2015java/article/details/53173896)

2, check the current running program situation, the remaining memory, kill program

• Check the current operation of the program: Top, Htop

• View memory Usage: free, free-m

• Kill program: Kill, Kill-9 PID (forced kill process) Reference: http://www.cnblogs.com/wangcp-2014/p/5146343.html

3. sed command, grep command, awk command

• Reference (http://www.cnblogs.com/52fhy/p/5836429.html)

4. Linux Vim split screen

• Linux opens multiple files at the same time, vim file1 file2

  Display on a screen: new File1 or:new file2

  Multiple file switches Ctrl + W

  or with Vi-o file1 file2 file3 .... Open multiple files at the same time using the split screen window. (uppercase) or with Vi-o file1 file2 file3 .... Open multiple files at the same time using the split screen window. lowercase

  You can use CTRL + two times to press W or CTRL + W and then press the up and down keys to toggle between the upper and lower windows

  Ctrl+w s split-screen display of current document content

  CTRL+W Q Close the screen

  Ctrl+w o display only current split-screen content

  Ctrl+w J k up and down select split screen

5. Liux Process

• Linux to input files into text, redirect command 1> result redirect 2> error redirect

• CTRL + Z hangs a running process

• Jobs view the pending process

• BG process number Background running process

• FG process number foreground running process

• Kill process number kills process

Linux Basic Bash command