Linux command background Execution tips Summary

1, the simplest method:

Command &

For example:

Top &

The job number and background process number are displayed

[114814

2. Running programs are put into the background

Ctrl-z

3. See what background processes and status

Jobs

4. Switch the background process to the foreground execution

FG Job number

5, let the background suspended process continue to execute

BG Job number

6, kill the background execution program

Kill %job Number

7, let the program in the background to execute, close the terminal does not quit

For example a continuous output program test.sh, as follows

 while [True]  do    Echo Hello     Sleep 1  Done

Want to continue execution after closing the terminal

Nohup./test. SH &

Default program output in the Nohup.out file

Check the process after exiting the terminal and re-login

PS grep Test. SH

Kill process, use Kill + process number

8, with the help of screen gadget to complete

Yum Install Screen

Enter screen and enter a new virtual terminal to perform the task.

Enter <Ctrl> + <a>, <D> exit current screen

<Ctrl> + <a>,  <D>

View all backend Terminals

Screen-list

Restore a terminal that has just been shut down

Screen-r

Linux command background Execution tips Summary