How to run a command when any process starts?
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I have an sh script to update my wallpaper which uses pscircle in order to display running processes. The script runs every five seconds to update the wallpaper, but I would like it so that the script runs whenever any process starts or stops. Is this possible?
Edit 1: Could also just make it check the number of processes running under my user name
Edit 2: Might have to add an exception for pscircle itself
linux bash script sh
asked Dec 1 at 20:10
The Forgotten King
11
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show 1 more comment
up vote
0
down vote
favorite
I have an sh script to update my wallpaper which uses pscircle in order to display running processes. The script runs every five seconds to update the wallpaper, but I would like it so that the script runs whenever any process starts or stops. Is this possible?
Edit 1: Could also just make it check the number of processes running under my user name
Edit 2: Might have to add an exception for pscircle itself
linux bash script sh
asked Dec 1 at 20:10
The Forgotten King
11
While it might be possible, it would also be a big mistake: When thepscircleprocess starts it would create another trigger, which would startpscircle...
– Eugen Rieck
Dec 1 at 20:13
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
2
And of course you startpscirclewith abashscript, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.
– Eugen Rieck
Dec 1 at 20:16
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18
|
show 1 more comment
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have an sh script to update my wallpaper which uses pscircle in order to display running processes. The script runs every five seconds to update the wallpaper, but I would like it so that the script runs whenever any process starts or stops. Is this possible?
Edit 1: Could also just make it check the number of processes running under my user name
Edit 2: Might have to add an exception for pscircle itself
linux bash script sh
asked Dec 1 at 20:10
The Forgotten King
11
I have an sh script to update my wallpaper which uses pscircle in order to display running processes. The script runs every five seconds to update the wallpaper, but I would like it so that the script runs whenever any process starts or stops. Is this possible?
Edit 1: Could also just make it check the number of processes running under my user name
Edit 2: Might have to add an exception for pscircle itself
linux bash script sh
linux bash script sh
asked Dec 1 at 20:10
The Forgotten King
11
asked Dec 1 at 20:10
The Forgotten King
11
edited Dec 1 at 20:14
asked Dec 1 at 20:10
The Forgotten King
11
asked Dec 1 at 20:10
The Forgotten King
11
asked Dec 1 at 20:10
The Forgotten King
11
11
While it might be possible, it would also be a big mistake: When thepscircleprocess starts it would create another trigger, which would startpscircle...
– Eugen Rieck
Dec 1 at 20:13
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
2
And of course you startpscirclewith abashscript, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.
– Eugen Rieck
Dec 1 at 20:16
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18
|
show 1 more comment
While it might be possible, it would also be a big mistake: When thepscircleprocess starts it would create another trigger, which would startpscircle...
– Eugen Rieck
Dec 1 at 20:13
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
2
And of course you startpscirclewith abashscript, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.
– Eugen Rieck
Dec 1 at 20:16
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18
While it might be possible, it would also be a big mistake: When the
pscircle process starts it would create another trigger, which would start pscircle ...– Eugen Rieck
Dec 1 at 20:13
While it might be possible, it would also be a big mistake: When the
pscircle process starts it would create another trigger, which would start pscircle ...– Eugen Rieck
Dec 1 at 20:13
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
2
2
And of course you start
pscircle with a bash script, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.– Eugen Rieck
Dec 1 at 20:16
And of course you start
pscircle with a bash script, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.– Eugen Rieck
Dec 1 at 20:16
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18
|
show 1 more comment
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While it might be possible, it would also be a big mistake: When the
pscircleprocess starts it would create another trigger, which would startpscircle...– Eugen Rieck
Dec 1 at 20:13
Ah yea I didn't realize that. Might have to create an exception of some sort
– The Forgotten King
Dec 1 at 20:14
2
And of course you start
pscirclewith abashscript, so there is another exception, and the wallpaper change starts a dbus session, creating another process, plus what cron and friends do ... you'd end up with your system being quite busy just changing wallpapers.– Eugen Rieck
Dec 1 at 20:16
What stops you from using a load indicator applet and do the pscircle magic only every few seconds?
– Eugen Rieck
Dec 1 at 20:17
@EugenRieck is completely right here. In just a second over 100 processes can start and stop in that same second (processes like forking web servers). Changing your wallpaper that frequently will just crash your system.
– Fanatique
Dec 1 at 21:18