linux nohup 关终端不中断进程



$ nohup yourapps &
e.g $nohup node app.js &

nohup yourapps >/dev/null 2>&1 &

Unix/Linux下一般比如想让某个程序在后台运行,很多都是使用 & 在程序结尾来让程序自动运行。比如我们要运行mysql在后台:

  /usr/local/mysql/bin/mysqld_safe --user=mysql &

但是加入我们很多程序并不象mysqld一样做成守护进程,可能我们的程序只是普通程序而已,一般这种程序使用 & 结尾,但是如果终端关闭,那么程序也会被关闭。但是为了能够后台运行,那么我们就可以使用nohup这个命令,比如我们有个test.php需要在后台运行,并且希望在后台能够定期运行,那么就使用nohup:

  nohup /root/test.php &


  [~]$ appending output to nohup.out

嗯,证明运行成功,同时把程序运行的输出信息放到当前目录的 nohup.out 文件中去。


nohup 命令


  语法:nohup Command [ Arg ... ] [ & ]

描述:nohup 命令运行由 Command 参数和任何相关的 Arg 参数指定的命令,忽略所有挂断(SIGHUP)信号。在注销后使用 nohup 命令运行后台中的程序。要运行后台中的 nohup 命令,添加 & ( 表示“and”的符号)到命令的尾部。

无论是否将 nohup 命令的输出重定向到终端,输出都将附加到当前目录的 nohup.out 文件中。如果当前目录的 nohup.out 文件不可写,输出重定向到 $HOME/nohup.out 文件中。如果没有文件能创建或打开以用于追加,那么 Command 参数指定的命令不可调用。如果标准错误是一个终端,那么把指定的命令写给标准错误的所有输出作为标准输出重定向到相同的文件描述符。


126 可以查找但不能调用 Command 参数指定的命令。

127 nohup 命令发生错误或不能查找由 Command 参数指定的命令。

否则,nohup 命令的退出状态是 Command 参数指定命令的退出状态。


nohup命令:如果你正在运行一个进程,而且你觉得在退出帐户时该进程还不会结束,那么可以使用nohup命令。该命令可以在你退出帐户/关闭终端之后继续运行相应的进程。nohup就是不挂起的意思( n ohang up)。


nohup command &



  nohup command > myout.file 2>&1 &


使用 jobs 查看任务。

使用 fg %n 关闭。


10 Responses so far.

  1. A person essentially help to make significantly posts I would
    state. This is the very first time I frequented your website page
    and thus far? I amazed with the analysis you made to create this actual post incredible.
    Great task!
  2. I used to be able to find good information from your content.
  3. Wonderful beat ! I wish to apprentice while you amend your website, how could i subscribe for a blog website?
    The account helped me a acceptable deal. I had been tiny bit acquainted of this your
    broadcast offered bright clear concept
  4. I visited various websites but the audio quality for audio songs existing at this web page is actually fabulous.
  5. Hi there, I enjoy reading all of your post. I wanted to write a little comment
    to support you.
  6. Hello, i think that i saw you visited my weblog thus i came to “return the favor”.I am attempting to
    find things to improve my web site!I suppose its ok to use some
    of your ideas!!
  7. quest bars says:
    you are actually a just right webmaster. The site loading
    pace is incredible. It seems that you are doing any distinctive trick.
    Also, The contents are masterwork. you have performed a wonderful
    activity on this matter!
  8. quest bars says:
    Thank you for any other informative blog. The place else
    could I get that type of information written in such a perfect method?
    I have a mission that I am just now operating on, and I’ve been on the look out for such information.
  9. Some really great information, Sword lily I observed this. “Speak when you are angry–and you will make the best speech you’ll ever regret.” by Laurence J. Peter.