To kill all jobs in the current shell session in Unix or Linux, you can use the kill command with the % wildcard to signal all the jobs.
For example, to send the SIGTERM signal (which terminates the process gracefully) to all the jobs in the current shell session, you can use the following command:
kill %
This will send the SIGTERM signal to all the jobs in the current shell session, causing them to terminate.
If you want to send a different signal to the jobs, you can specify the signal number or name after the % wildcard. For example, to send the SIGKILL signal (which terminates the process forcibly) to all the jobs in the current shell session, you can use the following command:
kill -9 %
This will send the SIGKILL signal to all the jobs in the current shell session, causing them to terminate immediately.
Keep in mind that killing jobs may cause data loss or corruption, especially if the jobs are running critical tasks. Use caution when killing jobs and only do so if necessary.
Additionally, you can use the jobs command to list the jobs in the current shell session and the fg and bg commands to move jobs to the foreground or background. This can be useful for managing and controlling the execution of jobs in the current shell session.