To bring a specific background job into the foreground:
1. Enter the fg (foreground) command followed by the job number.
If there is only one job running in the background just enter the fg command.
lpr -Pps23 interface.ps & jobs  + Running xterm -g 90x55  - Running xterm -g 90x55  Running lpr -Ppsa interface.ps fg 3 lpr -Pps23 interface.ps
This starts a process to print a file as a background job. The user then checks the current active jobs and brings the print job - job number three (3) - into the foreground.