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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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dynamically list open files for a given process name

Terminal - dynamically list open files for a given process name
lsof -i -n -P | grep -e "$(ps aux | grep node | grep -v grep | awk -F' ' '{print $2}' | xargs | awk -F' ' '{str = $1; for(i = 2; i < NF; i++) {str = str "\\|" $i} print str}')"
2015-02-14 23:24:00
User: hochmeister
Functions: grep
dynamically list open files for a given process name

us lsof, grep for any pid matching a given name such as "node".


There are 3 alternatives - vote for the best!

Terminal - Alternatives

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What others think

OK, this command is much too long :-)


First, "ps | grep | grep -v grep"... you'd be better using pgrep or pidof

pgrep node


Next you use xargs and awk to join up the numbers into one line.

paste will do that for you with a choice of separators

... | paste -s -d\|

-s means "serial" (on one line)

-d delimiter of | (escaped with a backslash)


Then, change grep to -E to use extended regex syntax

(this means we can search for (1234|4567) without backslashes.


The final command looks like:

lsof -i -n -P | grep -E "($(pgrep node | paste -s -d\|))"
Comment by flatcap 161 weeks and 6 days ago

btw, security by obscurity only works if you don't broadcast that your root user is called 'rot' ;-)

Comment by flatcap 161 weeks and 6 days ago

Save the call to grep and just use lsof's -p option:

lsof -p "$(pgrep node | paste -s -d\,)"

Comment by my_username 161 weeks and 1 day ago

Your point of view

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