Title: Htop
Post by: tokaro on 14 August 2020, 17:47:32
Post by: tokaro on 14 August 2020, 17:47:32
Hello,
I have recently migrated from devuan to artix.When i run HTOP i can see that Firefox is running like this>
If i remeber well on Devuane i had in HTOP listing something like this>
When i want to get a PID of Firefox using PGREP, i get nothing .
echo $? returns 1, an error.
When i run Chromium, there is also no listing in HTOP like /usr/sbin/chromium but PGREP returns some PIDs
Well I do not whether this is a bug or feature?
Thanks for any suggestions or advice.
I have recently migrated from devuan to artix.When i run HTOP i can see that Firefox is running like this>
Quote
tom 3086 1 13 17:15 ? 00:02:20 /usr/lib/firefox/firefox
tom 3168 3086 0 17:15 ? 00:00:03 /usr/lib/firefox/firefox -contentproc -childID 2 -isForBrowser -prefsLen 41 -prefMapSize 221475 -parentBuildID 20200727193539 -appdir /usr/lib/firefox/browser 3086 true tab
tom 3229 3086 1 17:15 ? 00:00:13 /usr/lib/firefox/firefox -contentproc -childID 3 -isForBrowser -prefsLen 308 -prefMapSize 221475 -parentBuildID 20200727193539 -appdir /usr/lib/firefox/browser 3086 true tab
If i remeber well on Devuane i had in HTOP listing something like this>
Quote
tom ...... /usr/sbin/firefox
When i want to get a PID of Firefox using PGREP, i get nothing .
echo $? returns 1, an error.
When i run Chromium, there is also no listing in HTOP like /usr/sbin/chromium but PGREP returns some PIDs
Well I do not whether this is a bug or feature?
Thanks for any suggestions or advice.
Title: Re: Htop
Post by: guzzisti on 14 August 2020, 18:19:49
Post by: guzzisti on 14 August 2020, 18:19:49
You might want to take a look at the htop settings "hide userland process threads":
Title: Re: Htop
Post by: tokaro on 14 August 2020, 21:25:46
Post by: tokaro on 14 August 2020, 21:25:46
Thanks for a swift reply.
But my question is whether the HTOP does intentionally show FIREFOX process like
/usr/lib/firefox/firefox
AND NOT like
/usr/sbin/firefox
Why the PGREP commnad does not return Firefox s PID?
Thanks
But my question is whether the HTOP does intentionally show FIREFOX process like
/usr/lib/firefox/firefox
AND NOT like
/usr/sbin/firefox
Why the PGREP commnad does not return Firefox s PID?
Thanks
Title: Re: Htop
Post by: toxygen on 15 August 2020, 05:47:49
Post by: toxygen on 15 August 2020, 05:47:49
Quote
Why the PGREP commnad does not return Firefox s PID?
probably the way firefox is built from source for artix, using /usr/lib/firefox and then linking the binary in /usr/bin
waterfox is the same way:
Title: Re: Htop
Post by: guzzisti on 15 August 2020, 08:43:04
Post by: guzzisti on 15 August 2020, 08:43:04
Thanks for clearing things up, my answer was a way off then ... :D
As @toxygen already mentioned, the different paths to the firefox executable are just a matter of packaging.
When you have a look at /usr/bin/firefox, it's just a tiny shell script launching the firefox binary in /usr/lib/firefox. So someone decided to put the whole firefox stuff to /usr/lib/firefox/.
As to pgrep, i'm not familiar with what behaviour would be expected, but it works fine as soon as i use the -f switch:
As @toxygen already mentioned, the different paths to the firefox executable are just a matter of packaging.
When you have a look at /usr/bin/firefox, it's just a tiny shell script launching the firefox binary in /usr/lib/firefox. So someone decided to put the whole firefox stuff to /usr/lib/firefox/.
As to pgrep, i'm not familiar with what behaviour would be expected, but it works fine as soon as i use the -f switch:
Code: [Select]
$ pgrep -a -f -o firefox
3123 /usr/lib/firefox/firefox
Title: Re: Htop
Post by: tokaro on 17 August 2020, 13:46:27
Post by: tokaro on 17 August 2020, 13:46:27
Hello,
Thank you very much for explanation.When i run the command as you do
I get the awaited result >
I just do not understand why the PGREP command without the switches, does not return anything, ends with error?
As mentioned above when i run
Any idea why?
Thanks
Thank you very much for explanation.When i run the command as you do
Code: [Select]
pgrep -a -o -f firefox
I get the awaited result >
Code: [Select]
3116 /usr/lib/firefox/firefox
I just do not understand why the PGREP command without the switches, does not return anything, ends with error?
As mentioned above when i run
Code: [Select]
pgrep chromium, it returns the PID of chromium.
Any idea why?
Thanks