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commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Universal configuration monitoring and system of record for IT.

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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!

Top Tags



Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Find files that were modified by a given command

Terminal - Find files that were modified by a given command
touch /tmp/file ; $EXECUTECOMMAND ; find /path -newer /tmp/file
2009-08-31 18:47:19
User: matthewdavis
Functions: find touch
Find files that were modified by a given command

This has helped me numerous times trying to find either log files or tmp files that get created after execution of a command. And really eye opening as to how active a given process really is. Play around with -anewer, -cnewer & -newerXY


There are 2 alternatives - vote for the best!

Terminal - Alternatives
strace <name of the program>

Know a better way?

If you can do better, submit your command here.

What others think

Great command!

Another way could also use strace. strace records all system calls made, and you can even attach it to running processes:

strace -o straceoutput.txt $COMMAND

also use -p $PID to attach to an already-running program. Also, use ltrace to trace library calls.

Comment by bwoodacre 373 weeks and 4 days ago

Prefer to use lsof -p, see command:


Comment by zlemini 343 weeks and 2 days ago
diff <(lsof -p 1234) <(sleep 10; lsof -p 1234)
Comment by zlemini 343 weeks and 2 days ago

Your point of view

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