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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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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 tagged curl from sorted by
Terminal - Commands tagged curl - 189 results
curl -s 'http://checkip.dyndns.org' | sed 's/.*Current IP Address: \([0-9\.]*\).*/\1/g'
cat file-that-failed-to-download.zip | curl -C - http://www.somewhere.com/file-I-want-to-download.zip >successfully-downloaded.zip
2009-08-05 13:33:06
Functions: cat
-1

If you are downloading a big file (or even a small one) and the connection breaks or times out, use this command in order to RESUME the download where it failed, instead of having to start downloading from the beginning. This is a real win for downloading debian ISO images over a buggy DSL modem.

Take the partially downloaded file and cat it into the STDIN of curl, as shown. Then use the "-C -" option followed by the URL of the file you were originally downloading.

(curl -d q=grep http://www.commandlinefu.com/search/autocomplete) | egrep 'autocomplete|votes|destination' | perl -pi -e 's/a style="display:none" class="destination" href="//g;s/<[^>]*>//g;s/">$/\n\n/g;s/^ +//g;s/^\//http:\/\/commandlinefu.com\//g'
2009-07-08 22:10:49
User: isaacs
Functions: egrep perl
1

There's probably a more efficient way to do this rather than the relatively long perl program, but perl is my hammer, so text processing looks like a nail.

This is of course a lot to type all at once. You can make it better by putting this somewhere:

clf () { (curl -d "q=$@" http://www.commandlinefu.com/search/autocomplete 2>/dev/null) | egrep 'autocomplete|votes|destination' | perl -pi -e 's/<a style="display:none" class="destination" href="//g;s/<[^>]*>//g;s/">$/\n\n/g;s/^ +|\([0-9]+ votes,//g;s/^\//http:\/\/commandlinefu.com\//g'; }

Then, to look up any command, you can do this:

clf diff

This is similar to http://www.colivre.coop.br/Aurium/CLFUSearch except that it's just one line, so more in the spirit of CLF, in my opinion.

curl -u <user>:<password> -d status="Amarok, now playing: $(dcop amarok default nowPlaying)" http://twitter.com/statuses/update.json
2009-06-14 02:42:34
User: caiosba
6

Share your "now playing" Amarok song in twitter!

curl -s checkip.dyndns.org | grep -Eo '[0-9\.]+'
2009-05-21 16:12:21
User: haivu
Functions: grep
4

The curl command retrieve the HTML text containing the IP address. The grep command picks out the IP address from that HTML text.

curl -u USER:PASS -d status="NEW STATUS" http://identi.ca/api/statuses/update.xml
2009-05-15 19:57:00
4

identica is an open source social networking and micro-blogging service. Based on Laconica, a micro-blogging software package built on the OpenMicroBlogging specification.

http://identi.ca/

curl -s 'http://download.finance.yahoo.com/d/quotes.csv?s=csco&f=l1'
2009-05-04 08:13:59
User: haivu
Tags: curl finance
11

Retrieve the current stock price from Yahoo Finance. The output is simply the latest price (which could be delayed). If you want to look up stock for a different company, replace csco with your symbol.

curl --form username=from_twitter --form password=from_twitter --form media=@/path/to/image --form-string "message=tweet" http://twitpic.com/api/uploadAndPost
curl -f -O http://pcbsd.fastbull.org/7.0.2/i386/PCBSD7.0.2-x86-DVD.iso
2009-04-26 07:23:31
User: battavia
Tags: curl
-7

download a specific file with -f to not display errors and -O to write output to a file named as the remote file.

curl dict://dict.org/d:something
2009-04-10 18:12:37
Tags: curl
15

A bash function might also be useful:

dict() { curl dict://dict.org/d:$1; }

Or if you want less verbose output:

dict() { curl -s dict://dict.org/d:$1 | perl -ne 's/\r//; last if /^\.$/; print if /^151/../^250/'; }
curl -u username -o bookmarks.xml https://api.del.icio.us/v1/posts/all
curl -i -X HEAD http://localhost/
curl http://domain.com/file.tar.gz | tar zx
curl -Is slashdot.org | egrep '^X-(F|B|L)' | cut -d \- -f 2