The suspend
command is a built-in shell command in Linux that is used to suspend the execution of the current shell. This command is useful when you need to temporarily stop the execution of a shell script or command and return to the parent shell.
Overview
The suspend
command is used to suspend the execution of the current shell. When you run this command, the shell is suspended, and you are returned to the parent shell. This is useful when you need to temporarily stop the execution of a shell script or command and return to the parent shell.
To use the suspend
command, simply type the following command at the command prompt:
suspend
When you run this command, the shell will be suspended, and you will be returned to the parent shell.
Examples
Here are some examples of how to use the suspend
command:
Example 1
$ vi myfile.txt
While editing the file, you realize that you need to run another command. Instead of quitting vi
, you can suspend it by pressing CTRL+Z
. This will suspend vi
and return you to the command prompt.
Example 2
$ ./myscript.sh
While running a shell script, you realize that you need to do something else. Instead of quitting the script, you can suspend it by pressing CTRL+Z
. This will suspend the script and return you to the command prompt.
Example 3
$ top
While running the top
command, you realize that you need to run another command. Instead of quitting top
, you can suspend it by pressing CTRL+Z
. This will suspend top
and return you to the command prompt.
Options
The suspend
command does not have any options.
Troubleshooting tips
Here are some troubleshooting tips for the suspend
command:
- If you are unable to suspend the shell, make sure that you are pressing the correct key combination (
CTRL+Z
). - If the shell does not return to the parent shell after being suspended, try running the
fg
command to bring the suspended job back to the foreground.
Notes
- The
suspend
command is a built-in shell command, which means that it is available in all Linux shells. - The
suspend
command is often used in conjunction with other commands, such asvi
,top
, and shell scripts.