Foreground processes: Run in the terminal and accept input
Background processes: Run independently without blocking terminal
# Run command in background
command & # Start in background
nohup command & # Continue after logout
# Job control
jobs # List current jobs
fg %1 # Bring job 1 to foreground
bg %1 # Send job 1 to background
Ctrl+Z # Suspend current process
Ctrl+C # Terminate current process
# Detach from terminal
nohup long_command > output.log 2>&1 &
disown %1 # Remove job from shell
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