What does the bg command do in UNIX?
a) Moves a process to the background
b) Terminates a process
c) Pauses a process
d) Resumes a paused process in the foreground
Answer:
a) Moves a process to the background
Explanation:
The bg command in UNIX is used to move a process to the background. If a process is running in the foreground and is paused (usually by pressing Ctrl + Z), you can use bg to resume it in the background, allowing you to continue working in the terminal.
For example, if a process is paused, running bg %1 (where %1 is the job number) will move it to the background. This is useful for multitasking when you want a process to continue running without blocking your terminal session.
Understanding the bg command is important for effective process management in UNIX. It allows users to control how processes are handled and ensures that background tasks can run without interrupting other work.