Use "screen" run background task w/o ssh connected

You may sometimes want to run an interactive task in background,
e.g. expect scripts, tintin++, iotop batch job, telnet bbs, wget, etc...
yet, without any ssh or win32-putty connected.

#1: Install Screen First on your Linux box

代碼:


$ sudo apt-get install screen
or
$ sudo yum install screen

#2: Run your process in "Screen background task"

代碼:


$ screen

$ run your process task 

$ (press ctrl+A, then, press ctrl+D)


[detached from 2703.pts-3.TestLinuxBox]

In which the "2703" is the "screen task id"

#3: Bring the background task to foreground screen

代碼:


$ screen -r
There are several suitable screens on:
        2703.pts-3.TestLinuxBox       (07/14/13 10:07:29)     (Detached)
        2652.pts-2.TestLinuxBox       (07/14/13 10:04:34)     (Detached)
Type "screen [-d] -r [pid.]tty.host" to resume one of them.



$ screen -r 2703.pts-3.TestLinuxBox

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