Hide

What's this?

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.


If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

Hide

News

2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.
Hide

Tags

Hide

Functions

Commands using wget from sorted by
Terminal - Commands using wget - 246 results
wget -q -U Mozilla -O output.mp3 "http://translate.google.com/translate_tts?ie=UTF-8&tl=en&q=hello+world
2011-03-08 14:05:36
User: sairon
Functions: wget
35

EDIT: command updated to support accented characters!

Works in any of 58 google supported languages (some sound like crap, english is the best IMO).

You get a mp3 file containing your query in spoken language. There is a limit of 100 characters for the "q" parameter, so be careful. The "tl" parameter contains target language.

wget -q -U "Mozilla/5.0" --post-file speech.flac --header="Content-Type: audio/x-flac; rate=16000" -O - "http://www.google.com/speech-api/v1/recognize?lang=en-us&client=chromium"
2011-03-08 13:39:01
User: sairon
Functions: wget
3

The FLAC audio must be encoded at 16000Hz sampling rate (SoX is your friend).

Outputs a short JSON string, the actual speech is in the hypotheses->utterance, the accuracy is stored in hypotheses->confidence (ranging from 0 to 1).

Google also accepts audio in some special speex format (audio/x-speex-with-header-byte), which is much smaller in comparison with losless FLAC, but I haven't been able to encode such a sample.

wget -U "Mozilla/5.0" -qO - "http://translate.google.com/translate_a/t?client=t&text=translation+example&sl=auto&tl=fr" | sed 's/\[\[\[\"//' | cut -d \" -f 1
2011-03-06 13:46:16
User: sairon
Functions: cut sed wget
5

substitute "example" with desired string;

tl = target language (en, fr, de, hu, ...);

you can leave sl parameter as-is (autodetection works fine)

wget http://cmyip.com -O - -o /dev/null | grep -Po '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'
site="http://gifbin.com/"; for i in $(wget -qO- "$site"random| sed -r "s/^.*(bin\/.+\.gif).*$/\1/m" | grep "^bin"); do wget -c "$site$i"; filename=`basename $i`; [ `identify $filename | wc -l` -gt 1 ] || rm -f $filename; done
2011-02-15 10:05:37
User: az
Functions: grep rm sed wc wget
-2

Download a bunch of random animated gifs from http://gifbin.com/

wget http://cmyip.com -O - -o /dev/null | awk '/\<title/ {print $4}'
wget --mirror -A.jpg http://www.xs4all.nl/~dassel/wall/
wget http://www.discogs.com/search?q=724349691704 -O foobar &> /dev/null ; grep \/release\/ foobar | head -2 | tail -1 | sed -e 's/^<div>.*>\(.*\)<\/a><\/div>/\1/' ; rm foobar
2011-01-30 23:34:54
User: TetsuyO
Functions: grep head rm sed tail wget
-1

Substitute that 724349691704 with an UPC of a CD you have at hand, and (hopefully) this oneliner should return the $Artist - $Title, querying discogs.com.

Yes, I know, all that head/tail/grep crap can be improved with a single sed command, feel free to send "patches" :D

Enjoy!

mplayer $(wget -q -O - "http://europarse.real.com/hurl/gratishurl.ram?pid=eu_aljazeera&amp;file=al_jazeera_en_lo.rm" | sed -e 's#lo.rm#hi.rm#')
2011-01-30 14:36:37
User: torrid
Functions: sed wget
3

One cannot call the high quality livestream directly, but command this gives you a session ID and the high quality stream. #egypt #jan25

wget http://www.youtube.com/watch?v=dQw4w9WgXcQ -qO- | sed -n "/fmt_url_map/{s/[\'\"\|]/\n/g;p}" | sed -n '/^fmt_url_map/,/videoplayback/p' | sed -e :a -e '$q;N;5,$D;ba' | tr -d '\n' | sed -e 's/\(.*\),\(.\)\{1,3\}/\1/' | wget -i - -O surprise.flv
2011-01-25 04:19:06
User: Eno
Functions: sed tr wget
37

Nothing special required, just wget, sed & tr!

wget http://URL/FILE.tar.gz -O - | tar xfz -
2011-01-18 12:17:16
Functions: tar wget
16

This will uncompress the file while it's being downloaded which makes it much faster

wget -e robots=off -E -H -k -K -p http://<page>
wget -qO- www.commandlinefu.com/commands/by/PhillipNordwall | awk -F\> '/num-votes/{S+=$2; I++}END{print S/I}'
head -100000 /dev/urandom | strings|tr '[A-Z]' '[a-z]'|sort >temp.txt && wget -q http://www.mavi1.org/web_security/wordlists/webster-dictionary.txt -O-|tr '[A-Z]' '[a-z]'|sort >temp2.txt&&comm -12 temp.txt temp2.txt
wget -qO - http://ngrams.googlelabs.com/datasets | grep -E href='(.+\.zip)' | sed -r "s/.*href='(.+\.zip)'.*/\1/" | uniq | while read line; do `wget $line`; done
wget -q -nd http://www.biranchi.com/ip.php; echo "Your external ip is : `cat ip.php`"
2010-12-20 09:53:59
User: pebkac
Functions: echo wget
-10

This is a convinient way to do it in scripts. You also want to rm the ip.php file afterwards

for ((;;)) do pgrep wget ||shutdown -h now; sleep 5; done
wget -O gsplitter.crx "https://clients2.google.com/service/update2/crx?response=redirect&x=id%3Dlnlfpoefmdfplomdfppalohfbmlapjjo%26uc%26lang%3Den-US&prod=chrome&prodversion=8.0.552.224" ; google-chrome --load-extension gspliter.crx
2010-12-14 19:12:18
User: strzel_a
Functions: wget
-3

Download Gsplitter extension, and execute it with Chrome !

Or download it here :

https://chrome.google.com/extensions/detail/lnlfpoefmdfplomdfppalohfbmlapjjo

function 4get () { curl $1 | grep -i "File<a href" | awk -F '<a href="' '{print $4}' | awk -F '" ' '{print $1}' | xargs wget }
2010-12-11 09:01:32
User: gml
Functions: awk grep wget xargs
2

Useful for ripping wallpaper from 4chan.org/wg

cd /usr/src ; wget http://www.rarlab.com/rar/unrarsrc-4.0.2.tar.gz ; tar xvfz unrarsrc-4.0.2.tar.gz ; cd unrar ; ln -s makefile.unix Makefile ; make clean ; make ; make install
wget -qO - http://www.commandlinefu.com/commands/random/plaintext | sed -n '1d; /./p'
2010-12-05 15:32:14
User: dramaturg
Functions: sed wget
7

Seeing that we get back plain text anyway we don't need lynx. Also the sed-part removes the credit line.

wget -qO- "VURL" | grep -o "googleplayer.swf?videoUrl\\\x3d\(.\+\)\\\x26thumbnailUrl\\\x3dhttp" | grep -o "http.\+" | sed -e's/%\([0-9A-F][0-9A-F]\)/\\\\\x\1/g' | xargs echo -e | sed 's/.\{22\}$//g' | xargs wget -O OUPUT_FILE
2010-12-03 17:27:08
Functions: echo grep sed wget xargs
2

Download google video with wget. Or, if you wish, pass video URL to ie mplayer to view as stream.

1. VURL: replace with url. I.e. http://video.google.com/videoplay?docid=12312312312312313#

2. OUPUT_FILE : optionally change to a more suited name. This is the downloaded file. I.e. foo.flv

# Improvements greatly appreciated. (close to my first linux command after ls -A :) )

Breakedown pipe by pipe:

1. wget: html from google, pass to stdout

2. grep: get the video url until thumbnailUrl (not needed)

3. grep: Strip off everything before http://

4. sed: urldecode

5. echo: hex escapes

6. sed: stipr of tailing before thumbnailUrl

7. wget: download. Here one could use i.e. mplayer or other...

wget -O LICENSE.txt http://www.gnu.org/licenses/gpl-3.0.txt
wget --auth-no-challenge --server-response -O- $url 2>&1 | grep "Cookie" | sed "s/^ Set-//g" > cookie.txt; wget --auth-no-challenge --server-response --http-user="user" --http-password="pw" --header="$(cat cookie.txt)" -O- $url
2010-12-01 11:24:35
User: glaudiston
Functions: grep sed wget
1

I have a server with a php requiring basic authentication, like this:

header('WWW-Authenticate: Basic realm="do auth"');

header('HTTP/1.0 401 Unauthorized');

...?>

And the basic authentication in wget do not worked:

wget --auth-no-challenge --http-user="username" --http-password="password" -O- "http://url" wget --keep-session-cookies --save-cookies=cookies.txt --load-cookies=cokies.txt --http-user="username" --http-password="password" -O- "http://url"

I always received the 401 Authorization failed.

The saved cookie is always empty.

With my way, I received the header from the server and save the cookie, then resend the session cookie with authentication data

cat video.ogg | nc -l -p 4232 & wget http://users.bshellz.net/~bazza/?nombre=name -O - & sleep 10; mplayer http://users.bshellz.net/~bazza/datos/name.ogg