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jdiez

Member

Registered: 2009-08-03

Posts: 40

Find "my own pid" [SOLVED]

Hi, I'm writing a bash script to use with a DSLR camera as a remote control.

One of the modes I thought of was something like "shoot every X seconds for Y minutes". So at first I thought of doing simple maths to calculate the number of times the script would run. But then I remembered long exposures. If you have set your camera up for firing 5 seconds, then the camera remote would have to wait 5 additional seconds and so it wouldn't be running for the specified minutes.

Then I came up with something like "getting own pid". I mean, before the loop I'll have something like:

(sleep $1 ; kill -9 $PID) &

And then run the loop normally, firing the camera.

By the way, it would also be great to get the pid of another process. Everytime the script fires a shot, it opens 'feh' for previewing, so I'd also like to be able to get this pid.

Thanks in advance!
PS: Sorry for my bad english, I'm spanish ^^'

Last edited by jdiez (2009-08-06 16:07:05)

markp1989

Member

Registered: 2008-10-05

Posts: 431

Re: Find "my own pid" [SOLVED]

Try the pidof command seems like what you want.

eg:

 [mark@markspc ~]$ pidof firefox
1205
[mark@markspc ~]$

Last edited by markp1989 (2009-08-05 22:58:27)

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jdiez

Member

Registered: 2009-08-03

Posts: 40

Re: Find "my own pid" [SOLVED]

Thanks, markp1989!

Would that work if I called it with something like PID = `pidof feh --scale /photos/jpeg/$1.jpg` ?

fukawi2

Ex-Administratorino

From: .vic.au

Registered: 2007-09-28

Posts: 6,224

Website

Re: Find "my own pid" [SOLVED]

Then I came up with something like "getting own pid".

echo $$

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jdiez

Member

Registered: 2009-08-03

Posts: 40

Re: Find "my own pid" [SOLVED]

Thanks fukawi! That worked perfectly.

jdiez

Member

Registered: 2009-08-03

Posts: 40

Re: Find "my own pid" [SOLVED]

But I still don't know how to find the pid for a feh run with some settings, like

feh --scale whatever.png

majiq

Member

Registered: 2009-03-06

Posts: 259

Re: Find "my own pid" [SOLVED]

But I still don't know how to find the pid for a feh run with some settings, like

feh --scale whatever.png

pgrep -f "feh --scale whatever.png"

jdiez

Member

Registered: 2009-08-03

Posts: 40

Re: Find "my own pid" [SOLVED]

thanks so much! that just did it!