[Trisquel-users] I need shell script help

[sachindey]

I want to run few apps that will start one after another after a specific  
time interval. I am currently using the following script:

#!/bin/sh
# run B 5 seconds later, but without blocking the rest of the script
command "/usr/bin/A" &
sleep 5 && command "/usr/bin/B"



Is it correct?
Do I have to make improvements?