Command Manual: Linux Run Command CTRL + Z

Although Microsoft is still so huge for Linux, many people are still applying Linux. Many people like the advantages of Linux. This article explains the role of CTRL + Z when running Linux commands. When running Linux commands, use CTRL + Z to force the current process to be switched to the background and stop it.

1. resume the process (background)

(1) Use the command bg

 
 

  
  
Example:
  
  
Zuii @ zuii-desktop :~ /Unp/tcpcliserv $./tcpserv01
  
  
* CTRL + Z is used here, And serv01 is stopped *
  
  
[1] + Stopped./tcpserv01
  
  
Zuii @ zuii-desktop :~ /Unp/tcpcliserv $ bg
  
  
[1] +./tcpserv01 & * at this time, serv01 runs in the background *
  
  
Zuii @ zuii-desktop :~ /Unp/tcpcliserv $
 
 

(2) What if I use CTRL + Z to stop several programs?

Example:

 
 

  
  
Zuii @ zuii-desktop :~ /Unp/tcpcliserv $ jobs
  
  
[1]-Running./tcpserv01 &
  
  
[2] + Stopped./tcpcli01 127.0.0.1
  
  
Zuii @ zuii-desktop :~ /Unp/tcpcliserv $ bg % 1
  
  
Bash: bg: Task 1 has been transferred to the background * run in the background *
 
 

2. Restore the process to the foreground

 
 

  
  
Example:   
  
  
zuii@zuii-desktop:~/unp/tcpcliserv$ ./tcpserv04   
  
  
[1]+ Stopped ./tcpserv04   
  
  
zuii@zuii-desktop:~/unp/tcpcliserv$ fg   
  
  
./tcpserv04  
 
 

Summary:

(1) CTRL + Z stop the process and put it in the background

(2) jobs displays the currently paused Processes

(3) bg % N run the nth task in the background (there is a space before %)

(4) fg % N run the nth task on the foreground

Bg by default. If fg does not contain % N, the last process is operated! I hope you can learn the role of CTRL + Z when running commands in Linux.