Linux commands-Work Management command: &,CTRL+Z,JOBS,FG,BG

There are two ways to put a process into the background under Linux:

The first way:& means that the command executes the program in the background, which is equivalent to minimizing the program in Windows.

The second way: Execute a command, for example: top, and then press CTRL + Z shortcut key, put it into the background to execute.

The difference between the two ways is: the first way:& into the background of the process is still executing, the second way: Ctrl + Z into the background of the execution is suspended.

Execute the top command, and then press Ctrl+z,ctrl+c is forced to exit, Q is normal exit, we are here to use CTRL + Z into the background, note the status of stopped

Top

Jobs-l

FG%1 Restores the 1 work number in the background process to the foreground execution, does not write 1 to restore the last work number (+) to the foreground execution, or can not write%,FG 1

For example, top cannot revert back to background execution because the top command needs to interact with the foreground when it executes, so top cannot revert back to the background execution. After you resume the background run, the status changes to running.

Linux commands-Work Management command: &,CTRL+Z,JOBS,FG,BG