1
First:
sudo netstat -nptc | grep -oP "\K[0-9]*(?=/perl)"
The above gives me the pid as they are started, so it is constantly running.
Second:
For each output of the first command above I want to execute below:
ps aux | grep <output of first>
How can this be done?
Exocomp
Posted 2017-07-22T17:23:59.300
Reputation: 141
1
To send the output of one command into the command line of another command use xargs.
The complication here is that you need to start a pipeline, and for that use a shell. That can be done with something like:
sudo netstat -nptc | grep -oP "\K[0-9]*(?=/perl)" | xargs -l sh -c 'ps aux | grep "$0"'
Stephen Rauch
Posted 2017-07-22T17:23:59.300
Reputation: 2 455
I tried your solution but didn't work, it doesn't return anything, this part works sudo netstat -nptc | grep -oP "\K[0-9]*(?=/perl)" but the next part returns nothing. – Exocomp – 2017-07-25T17:36:08.590