如何在后台运行shell脚本？

如何在后台运行Shell脚本？

根据您的需要，只需在命令末尾添加＆

script.sh &
command &

如果您正在终端中运行它，然后又想关闭终端，请使用nohup或disown

Nohup

nohup script.sh &

舍弃

script &
disown

如果那不是您想要的，请在您的问题中更具体。

您只需切换屏幕并在第二个屏幕上运行脚本即可。当脚本从2号开始时，切换回1号，然后执行所需的任何操作。第二个屏幕将在后台作为额外的“终端窗口”。并且即使在第一屏蜂鸣时关闭ssh连接，它也不会停止处理。

screen --help
Use: screen [-opts] [cmd [args]]
 or: screen -r [host.tty]

Options:
-4            Resolve hostnames only to IPv4 addresses.
-6            Resolve hostnames only to IPv6 addresses.
-a            Force all capabilities into each window's termcap.
-A -[r|R]     Adapt all windows to the new display width & height.
-c file       Read configuration file instead of '.screenrc'.
-d (-r)       Detach the elsewhere running screen (and reattach here).
-dmS name     Start as daemon: Screen session in detached mode.
-D (-r)       Detach and logout remote (and reattach here).
-D -RR        Do whatever is needed to get a screen session.
-e xy         Change command characters.
-f            Flow control on, -fn = off, -fa = auto.
-h lines      Set the size of the scrollback history buffer.
-i            Interrupt output sooner when flow control is on.
-l            Login mode on (update /var/run/utmp), -ln = off.
-ls [match]   or -list. Do nothing, just list our SockDir [on possible matches].
-L            Turn on output logging.
-m            ignore $STY variable, do create a new screen session.
-O            Choose optimal output rather than exact vt100 emulation.
-p window     Preselect the named window if it exists.
-q            Quiet startup. Exits with non-zero return code if unsuccessful.
-r [session]  Reattach to a detached screen process.
-R            Reattach if possible, otherwise start a new session.
-s shell      Shell to execute rather than $SHELL.
-S sockname   Name this session <pid>.sockname instead of <pid>.<tty>.<host>.
-t title      Set title. (window's name).
-T term       Use term as $TERM for windows, rather than "screen".
-U            Tell screen to use UTF-8 encoding.
-v            Print "Screen version 4.01.00devel (GNU) 2-May-06".
-wipe [match] Do nothing, just clean up SockDir [on possible matches].
-x            Attach to a not detached screen. (Multi display mode).
-X            Execute <cmd> as a screen command in the specified session.

ctrl+ a，c将在您的活动屏幕会话中创建一个新的“窗口”。您可以在多个窗口之间切换用（如安斯加尔所示）ctrl+ a，n并为下一个窗口，ctrl+ a，p前一个窗口。

ctrl+ a，"将为您提供所有打开的窗口的列表。

更多：https：//superuser.com/questions/476709/quickly-switching-between-virtual-sessions-screen

如果您希望在关闭终端后保留脚本，则可以使用setsid以下另一种方法：

setsid script.sh

有关之间差异的详细信息nohup，disown，&和setsid：nohup的区别，不认和＆