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I have an executable file that contains a long loop, so I want to run it in background, how do I do that with bash script in Linux?
I know one way is Ctrl + z, then I type bg, how to simulate these key pressing in bash script?
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Use bg to Send Running Commands to the Background You can easily send such commands to the background by hitting the Ctrl + Z keys and then using the bg command. Hitting Ctrl + Z stops the running process, and bg takes it to the background.
You can start a background process by appending an ampersand character ( & ) to the end of your commands. This tells the shell not to wait for the process to complete, but instead to begin execution and to immediately return the user to a prompt.
To run a Windows program, enter the path to the program's .exe file in the Bash shell. Remember that your Windows C: drive is available at /mnt/c in Bash. The Bash environment is also case-sensitive, so you have to specify the correct capitalization.
To run a command or a script to the background, terminate it with an ampersand sign (&) at the end as shown. NOTE: Ending the command with the ampersand sign does not detach the command from you.
Any executable in linux can be run in the background as follows:
$ ./yourExecutable.exe&
Add the & character at end. (Assuming yourExecutable.exe is in the current working directory)
$ ps -ax | grep yourExecutable.exe
You will get an output like:
9384 pts/7 S+ 0:00 grep yourExecutable.exe
25082 pts/7 T 0:00 yourExecutable.exe&
Kill the second process using SIGKILL. That is the one you executed in the background.
$ kill -9 25082
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