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Functions

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
0
dynamically list open files for a given process name

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

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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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 148 weeks ago

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

Comment by flatcap 148 weeks ago

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

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

Comment by my_username 147 weeks and 2 days ago

Your point of view

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