Commands by dakira

Commands by dakira (5)

sorted by

Download all files from podcast RSS feed

Neither of the others worked for me. This does.
This is sample output - yours may be different.
1

curl http://url/rss | grep -o '<enclosure url="[^"]*' | grep -o '[^"]*$' | xargs wget -c

dakira · 2016-05-29 12:07:21 0
Show UDID of iPhone

Display the serial of the iPhone (aka UDID). Show Sample Output
This is sample output - yours may be different.
```
<40  HEX-chars>
```
3

lsusb -s :`lsusb | grep iPhone | cut -d ' ' -f 4 | sed 's/://'` -v | grep iSerial | awk '{print $3}'

dakira · 2011-11-03 20:39:43 0
Remove old kernels and header data in Ubuntu/Debian

Removes all kernels and corresponding packages except of the one you're currently using.
This is sample output - yours may be different.
0

sudo apt-get -y purge $(dpkg --get-selections | awk '((/^linux-/) && (/[0-9]\./) && (!/'"`uname -r | sed "s/-generic//g"`"'/)) {print $1}')

dakira · 2011-08-04 14:02:02 1
Find all files <10MB and sum up their size

files
This is sample output - yours may be different.
0

i=0; for f in $(find ./ -size -10M -exec stat -c %s {} \; ); do i=$(($i + $f)); done; echo $i

dakira · 2010-01-08 15:47:35 0
convert uppercase files to lowercase files
This is sample output - yours may be different.
20

rename 'y/A-Z/a-z/' *

dakira · 2009-02-22 20:42:10 7

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

Close shell keeping all subprocess running

Write on the console without being registered

just use a space to prevent commands from being recorded in bash's history on most systems

Randomize lines in a file

shuf is in the coreutils package

One command line web server on port 80 using nc (netcat)

Very simple web server listening on port 80 will serve index.html file or whatever file you like pointing your browser at http://your-IP-address/index.html for example. If your web server is down for maintenance and you'd like to inform your visitors about it, quickly and easily, you just have to put into the index.html file the right HTML code and you are done! Of course you need to be root to run the command using port 80.

Pronounce an English word using Dictionary.com

This one uses dictionary.com

convert wav files to ogg

cd to the folder containing the wav files and convert them all to ogg format. in my sample output i use the -a and -l flags to set the author and album title. to get the oggenc program in ubuntu linux run: sudo apt-get install oggenc

Search replace with Ansible style timestamps

$ ls httpd.conf httpd.conf.2015-07-22@14:43:20

Remove all old kernels

http://askubuntu.com/questions/89710/how-do-i-free-up-more-space-in-boot

Quick HTML image gallery

My take on the original: even though I like the other's use of -exec echo, sed just feels more natural. This should also be slightly easier to improve. I expanded this into a script as an exercise, which took about 35 minutes (had to look up some docs): http://bitbucket.org/kniht/nonsense/src/7c1b46488dfc/commandlinefu/quick_image_gallery.py

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

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 dakira