Monitoring

Question 1

What is the command to see open files?

Answer 1

lsof

i.e lsof /bin/bash

Question 2

What is the command to see what files a process has open?

Answer 2

lsof -p

Question 3

How can you use lsof to see which shared libraries a process has open?

Answer 3

lsof -p | grep .so

*shared object files

Question 4

How can you use lsof to see where a process is logging to?

Answer 4

lsof -p | grep log

Question 5

How do you see what files a user has open?

Answer 5

lsof -u

Question 6

How do you use lsof to see open internet connections?

Answer 6

lsof -i

Question 7

How do you view output in the terminal whilst simultaneously writing to a file?

Answer 7

tee

i.e echo test | tee filetowriteto