# Shell

## Run commands simultaneously

### Solution

• Suppose I want to run 3 commands simultaneously (Like submitting 3 Hadoop jobs)

sh ./test1.sh &
sh ./test2.sh &
sh ./test3.sh &
wait # You might want to wait for the above command to complete then proceed

• & lets the program to run in background

• Note, if you want to kill it, you will have to find its pid and run kill pid