System process

[haeman]

I know the path /proc have the user process in it , I use ll /proc and grep my login id , there are some process is display , but I found that some of these process is not real process , if I su other user then grep my_id again , it only display process id - 18257 , 18258 , these two process are really the process that I used in the system , can advise what make the difference ? how can I use my login id to grep my process without other unrelated process shown ?
Thx in advance.

$ ll /proc |grep my_id
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 14518
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 16816
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18255
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18256
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18257
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18258

su - ora_id
$ ll /proc |grep my_id
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18257
dr-xr-xr-x 3 my_id edp 0 Jan 17 15:49 18258

[Alexander Chuzhoy]

1. When you do ll as my_id - you actually start another process as my_id, which isn't happening when you do ll as ora.

2. /proc has a directory for every process under it, but in general use `ps` with various options combinations like `ps aux` or `ps ef` to list running processes.

[haeman]

thx reply ,

except use ps , how can I make use the process in /proc to find the user process ?

Please advise . thx

[haeman]

--> When you do ll as my_id - you actually start another process as my_id, which isn't happening when you do ll as ora.

I know this is the reason , can advise how to solve it ? thx

[Alexander Chuzhoy]

I'm not sure how usefull it is, but here's the line:
for i in `ll /proc|grep |awk '{print $NF}'`; do test -d /proc/${i}; if [ $? -eq "0" ]; then echo $i; fi; done


replace the string with the username.

[haeman]

for i in `ll /proc|grep |awk '{print $NF}'`; do test -d /proc/${i}; if [ $? -eq "0" ]; then echo $i; fi; done


thx

I try your script above , it will display less unrelated process , but still have ONE unrelated process , can advise how to erase it ? thx

[Alexander Chuzhoy]

Check what command starts this process.
cat /proc//cmdline

[haeman]

--> cat /proc//cmdline

what is the use to check the command to start this process ?

thx

[Alexander Chuzhoy]

So that you'll know why this procees was started in the first place.
replace with the process number of the process that is bothering you.

Please assign points.

[Stuart Browne]

Why not just 'ps -u ' ? It'll get your processes.

If you just want the pid's, you can do that too with 'ps -u -opid='.