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A child process which survives the parent's death (for sure)

Terminal - A child process which survives the parent's death (for sure)
( command & )
2011-01-07 19:06:30
User: wiburg
Functions: command
22
Up
Down
A child process which survives the parent's death (for sure)

Test scenario:

* Open xterm (or konsole, ...)

* Start xeyes with: ( xeyes & )

* Close the xterminal

The xeyes process should be still running.

Add to favourites | Report as malicious

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
command &!
2011-01-14 02:59:44
User: adambyrtek
Functions: command
0
Up
Down
A child process which survives the parent's death (Zsh version)
Comments (0) | Add to favourites | Report as malicious

Know a better way?

If you can do better, submit your command here.

What others think

{ list; } &

Comment by RanyAlbeg 124 weeks ago

{ list; } & doesn't work here.

I started xeyes this way. After closing the terminal, xeyes was terminated.

This doesn't happen, if you start it with ( xeyes & ).

Comment by wiburg 124 weeks ago

Wow. How does it work? Does it fork shell one additional time?

Comment by lockie 124 weeks ago

Yes, you are right.

But if you are running a script which consist of { list; } &

it acts the same.

lockie, the following is taken from ``man bash' ' :

(list) list is executed in a subshell environment.

Comment by RanyAlbeg 124 weeks ago

Just to add my $0.02, it starts the process in the background in its own sub-shell. So it won't die if the spawning shell of the sub-shell is terminated.

I always used to hup my commands to keep them alive even if the parent dies. However, I like this better! :)

Comment by scilec 123 weeks and 6 days ago

wouldn't

command & exit

also work?

Comment by capncanuck 123 weeks and 4 days ago

What's wrong with

nohup xeyes&
Comment by dennisw 123 weeks and 4 days ago

nice one! :) will definitely put to use

Comment by BruceLEET 123 weeks and 2 days ago

Zsh has an even nicer way to do the same

command &!
Comment by adambyrtek 123 weeks and 1 day ago

nohup leaves all those annoying "nohup.out" files that I don't really care for. they pollute my filesystem if left unchecked

Comment by kaedenn 122 weeks and 6 days ago

Your point of view

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