Commands by Strawp

Commands by Strawp (6)

sorted by

Generate an XKCD #936 style 4 word password

4 random words are better than one obfuscated word http://xkcd.com/936/ Show Sample Output
This is sample output - yours may be different.
```
DolbycuspidspromulgatedAmundsen
```
23

shuf -n4 /usr/share/dict/words | tr -d '\n'

Strawp · 2011-08-10 13:04:39 24
Create a QR code image in MECARD format

If your contact information was entered when your user account was created (it gets added to /etc/passwd) then this gets that info and creates a QR code for you automatically
This is sample output - yours may be different.
0

getent passwd $(whoami) | echo "$(perl -ne '/^([^:]+):[^:]+:[^:]+:[^:]+:([^ ]+) ?([^,]+)?,([^,]*),([^,]*),([^:,]*),?([^:,]*)/ and printf "MECARD:N:$3,$2;ADR:$5;TEL:$4;TEL:$6;EMAIL:$1@"')$HOSTNAME;;" | qrencode -o myqr.png

Strawp · 2011-07-25 12:59:57 4
Sum file sizes

pipe into | sed "s/$/\/(1024\*1024\*1024)/" | bc to get size in GB
This is sample output - yours may be different.
-2

find . -type f -printf %s\\n | numsum

Strawp · 2011-06-27 12:39:16 4
Download all videos in your Boxee queue

Gets all videos in your boxee queue with a URL associated with them and attempts to download each using get_flash_videos
This is sample output - yours may be different.
1

for i in $(curl -u <username> http://app.boxee.tv/api/get_queue | xml2 | grep /boxeefeed/message/object/url | cut -d "=" -f 2,3); do get_flash_videos $i; done

Strawp · 2011-01-03 13:43:03 4
List your Boxee queue

Might be able to do it in less steps with xmlstarlet, although whether that would end up being shorter overall I don't know - xmlstarlet syntax confuses the heck out of me. Prompts for your password, or if you're a bit mental you can add your password into the command itself in the format "-u user:password". Show Sample Output
This is sample output - yours may be different.
```
queued  Youtube video
queued  TEDTalks : The amazing intelligence of crows - Joshua Klein
queued  The Fresh Prince of the Dark Side Pranks Christian TV
queued  Grand Theft Auto: Chinatown Wars
queued  Flight of the Conchords Ep 6 Bret, You've got it Going On
```
0

curl -u <username> http://app.boxee.tv/api/get_queue | xml2 | grep /boxeefeed/message/description | awk -F= '{print $2}'

Strawp · 2010-01-20 16:17:19 551
Get the total length of all videos in the current dir in H:m:s

You're behind on your TV catch-up, but how far behind? This command tries to open mplayer against all files in the current dir. If it's a video file it will contain ID_LENGTH, which is summed and output in hours, minutes and seconds. Someone better at awk could probably reduce this down a lot. Show Sample Output
This is sample output - yours may be different.
```
30529.18
8h:28m:49s
```
5

mplayer -vo dummy -ao dummy -identify * 2>&1 | grep ID_LENGTH | sed 's/.*=$[0-9]*$/\1/' | xargs echo | sed 's/ /+/g' | bc | awk 'S=$1; {printf "%dh:%dm:%ds\n",S/(60*60),S%(60*60)/60,S%60}'

Strawp · 2009-09-24 10:33:19 8

What's this?

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

Share Your Commands

Check These Out

Remove security limitations from PDF documents using ghostscript (for Windows)

#4345 also works under windows

list files recursively by size

Display calendar with specific national holidays and week numbers

NB when you run this gcal command in your shell, holidays are highlighted but this highlighting does not show in the sample output (above). To find full details on gcal options: gcal --long-help | less Example for United States, Pennsylvania: gcal -K -q US_PA 2009 # display holidays in USA/Pennsylvania for 2009 (with week numbers) Example for Hong Kong: gcal -K -q HK 2009 # display holidays in Hong Kong for 2009 (with week numbers)

output stats from a running dd command to see its progress

if you start a large dd and forgot about statistics, but you still wonder what the progress is this command in an OTHER terminal will show you the way. NOTE: the watch command by itself will not output anything NOTE: the kill command will not kill the process

Convert all .wav to .mp3

Audio convert is a script that uses zenity and lame to transcode virtually any format to any other format provided you have the libraries installed to do so.

looking for files not subversioned

En entornos de desarrollos muchas veces se mezclan ficheros y debemos revisar si algo se nos ha quedado fuera del proyecto. Con esta linea de comando busco todos los ficheros que no sean M ( modificados ) para valorar si tengo que agregarlo al repositorio de subversion. Adem?s siempre se me olvida como usar un condicional con awk para una columna :D

Find partition name using mount point

lsblk | grep mountpoint

c_rehash replacement

When you don't have c_rehash handy. Really simple - if you have a .pem file that doesn't really contain a x509 cert (let's say, newreq.pem), it will create a link, simply called '.0', pointing to that file.

list block devices

Shows all block devices in a tree with descruptions of what they are.

Socksify any program to avoid restrictive firwalls

Require: - tsocks (deb pkg) - A working SOCKS proxy. It's easy with ssh: $ ssh -N -D localhost:1080 your.home.pc -p 443 - tsocks configuration in your /etc/tsocks.conf (for the previous): server = 127.0.0.1 server_port = 1080

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:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands by strawp