Linux維護日記:如何讓程式後台運行?

有時候需要在後台開啟服務，比如啟動服務，當然希望shell退出後仍然執行，這時可以用nohup命令.

使用非常簡單，比如要運行startup.sh作為後台服務，那麼輸入如下命令就可以

nohup ./startup.sh
&

在目前的目錄下會產生一個檔案:nohup.out,輸入:tail
-f nohup.out 就能看到了

附:Man nohup

nohup(1) - Linux man pageName

nohup - run a command immune to hangups, with output to a non-tty

Synopsis

nohup COMMAND [ARG]...
nohup OPTION

Description

Run COMMAND, ignoring hangup signals.

--help

display this help and exit

--version

output version information and exit

If standard input is a terminal, redirect it from /dev/null. If standard output is a terminal, append output to 'nohup.out' if possible,
'$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use 'nohupCOMMAND
> FILE'.

NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's
documentation for details about the options it supports.