Embedding the output of a command into a bash shell script is quite easy.
Here is an example.
echo "Hello $(whoami), the date is $(date -u). Have a nice day"
This is the output this will give you.
┌─[jason@neo]─[~] └──╼ $echo "Hello $(whoami), the date is $(date -u). Have a nice day." Hello jason, the date is Saturday 11 February 00:58:10 UTC 2017. Have a nice day.
This way, one-liners may be constructed to output information from a Linux command in one long echo command. This could be very useful.