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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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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

Commands by ashawley from sorted by
Terminal - Commands by ashawley - 7 results
find . -type d -name '*[A-Z]*' -execdir bash -c '! test -f "$(echo "$0" | tr "[:upper:]" "[:lower:]")"' {} \; -execdir bash -c 'mv "$0" "$(echo "$0" | tr "[:upper:]" "[:lower:]")"' {} \;
( cd /my/directory; xterm& )
2009-10-13 13:07:21
User: ashawley
Functions: cd
Tags: subshells

Perfect time for the rarely used sub shell.

awk '{print length, $0;}' | sort -nr
find . -maxdepth 1 ! -name '.' -execdir du -0 -s {} + | sort -znr | gawk 'BEGIN{ORS=RS="\0";} {sub($1 "\t", ""); print $0;}' | xargs -0 du -hs
2009-09-11 16:07:39
User: ashawley
Functions: du find gawk sort xargs

A little bit smaller, faster and should handle files with special characters in the name.

wget -q --spider http://server/cgi/script
2009-09-11 05:33:48
User: ashawley
Functions: wget
Tags: wget

I don't know if the --spider option works to execute a script, but it might be worth trying. Note that the Drupal project uses the following in a cron job.

wget -O - -q http://localhost/drupal/cron.php

The output is sent to standard out so it can be logged by cron.

awk '{delta = $1 - avg; avg += delta / NR; mean2 += delta * ($1 - avg); } END { print sqrt(mean2 / NR); }'
2009-09-11 04:46:01
User: ashawley
Functions: awk delta
Tags: awk

This will calculate a running standard deviation in one pass and should never have the possibility for overflow that can happen with other implementations. I suppose there is a potential for underflow in the corner case where the deltas are small or the values themselves are small.

awk '{avg += ($1 - avg) / NR;} END { print avg; }'
2009-09-10 17:06:03
User: ashawley
Functions: awk

This is an on-line algorithm for calculating the mean value for numbers in a column. Also known as "running average" or "moving average".