Commands by eastwind

Commands by eastwind (71)

sorted by

convert a string from lower case into uppercase
This is sample output - yours may be different.
-1

echo lowercaseword | tr '[a-z]' '[A-Z]'

eastwind · 2013-05-11 11:08:37 7
enable touchpad
This is sample output - yours may be different.
-2

synclient TouchPadOff=0

eastwind · 2013-04-02 23:29:03 7
disable touchpad
This is sample output - yours may be different.
-2

synclient TouchPadOff=1

eastwind · 2013-04-02 23:28:36 5
convert several jpg into one pdf file

require ImageMagick and GhostScript paquet
This is sample output - yours may be different.
1

convert *.jpg File_Output.pdf

eastwind · 2012-11-01 08:20:13 5
merge pdf using bash brace exansion

merge pdf from pg_0001.pdf until pg_0009.pdf into MyFile.pdf
This is sample output - yours may be different.
2

pdftk pg_000{1..9}.pdf cat output MyFile.pdf

eastwind · 2012-08-27 08:57:00 5
convert MTS video file format into xvid/mp3 avi format
This is sample output - yours may be different.
1

mencoder YOUR_VIDEO.MTS -ovc xvid -xvidencopts bitrate=5000:pass=2 -demuxer lavf -sws 3 -mc 0 -fps 25 -ofps 50 -oac mp3lame -lameopts cbr:br=128 -o YOUR_VIDEO.avi

eastwind · 2012-08-17 17:47:26 5

repeat a command every X seconds , output show the creation of partition image using fsarchiver, each line show the size of the image. Show Sample Output

-2

while x=0; do foo ; sleep 1 ; done

eastwind · 2012-07-11 13:22:21 5

convert png into jpg using imagemagick
This is sample output - yours may be different.
1

for img in *.png; do convert "$img" "$img.jpg" ; done

eastwind · 2012-03-03 11:03:08 7
show debian version

work on any debian based GNU/Linux distro Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ cat /etc/debian_version 
squeeze/sid
```
-6

cat /etc/debian_version

eastwind · 2011-12-11 11:13:16 186
To play a file at 1.5 times normal speed without increasing the pitch
This is sample output - yours may be different.
5

mplayer -af scaletempo=scale=1.5 foo.mp3

eastwind · 2011-10-03 09:55:50 5
Creating ISO Images from Audio CD

you should umount /dev/cdrom before using this cli
This is sample output - yours may be different.
-8

cat /dev/scd0 > ~/audio_image.iso

eastwind · 2011-09-24 15:29:27 12
Creating ISO Images from CDs/DVDs

create an iso from your cd/dvd-rom device . You need to umount /dev/cdrom before using the cli Show Sample Output
This is sample output - yours may be different.
```
gnu@robby: dd if=/dev/cdrom of=~/cd_image.iso
834244+0 records in
834244+0 records out
427132928 bytes (427 MB) copied, 198.13 s, 2.2 MB/s
```
4

dd if=/dev/cdrom of=~/cd_image.iso

eastwind · 2011-09-24 15:27:04 7
merge ogg file into a new one according to their download time
This is sample output - yours may be different.
0

cat $(ls -c | grep ogg | tac ) > directory/test.ogg

eastwind · 2010-07-30 20:49:01 6
make directory with current date

Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:/tmp/$ mkdir $(date +%Y_%m_%d) 
gnu@robby:/tmp/$ ls 
2010_04_16
```
2

mkdir $(date +%Y_%m_%d)

eastwind · 2010-04-16 17:23:40 9
umount sshfs mounted directory
This is sample output - yours may be different.
0

fusermount -u ~/sshfs_mounted_directory

eastwind · 2010-04-16 10:54:39 4
remove oprhan package on debian based system
This is sample output - yours may be different.
2

sudo deborphan | xargs sudo apt-get -y remove --purge

eastwind · 2010-04-10 13:06:03 6
get value after comma from an arithmetic operation

scale define the number you want after comma Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ echo "scale=6;2048 / 2.345" | bc
873.347547
```
0

echo "scale=6;2048 / 2.345" | bc

eastwind · 2010-04-05 12:06:50 4
convert chinese character into wubi86 input code

This CLI requiere the uniconv package that is provided with the yudit unicode editor . The wubi86 is a way to type chinese far quicker than pinyin . More infor on wikipedia : http://en.wikipedia.org/wiki/Wubizixing , http://www.yale.edu/chinesemac/wubi/xing.html Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ echo ?? | uniconv -encode Chinese-WB
if tvfh 
gnu@robby:~$ 
```
1

echo Your_Chinese_Char | uniconv -encode Chinese-WB

eastwind · 2010-04-05 10:57:42 4
get only time of execution of a command without his output

Show Sample Output
This is sample output - yours may be different.
```
$ time awk -f test.awk file >/dev/null

real    0m0.390s
user    0m0.370s
sys     0m0.010s


$ time perl test.pl file >/dev/null

real    0m0.481s
user    0m0.431s
sys     0m0.022s
```
2

time Command >/dev/null

eastwind · 2010-03-17 09:09:01 7
converting vertical line to horizontal line
This is sample output - yours may be different.
1

tr '\n' '\t' < inputfile

eastwind · 2010-03-15 08:06:42 7
converting horizontal line to vertical line
This is sample output - yours may be different.
3

tr '\t' '\n' < inputfile

eastwind · 2010-03-15 08:05:41 4
get one field inside another that is delimited by space
This is sample output - yours may be different.
-2

cut -f2 file.txt | cut -d " " -f1

eastwind · 2010-03-15 08:01:02 5
refresh texmacs font cache after installing new fonts

after installing new fonts ( tfm , pfb , cjk , truetype ... ) manually in your ~/.Texmacs/fonts , it doesn't always reload it properly , just refresh it by delete the old cache fonts in sample output , I just installed TrueType Chinese CJK fireflysung fonts supports Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~/.TeXmacs$ texmacs --delete-font-cache
TeXmacs] With linked TrueType support
[: 39: =: unexpected operator
[: 39: =: unexpected operator
TeXmacs] Loading corktounicode
TeXmacs] Loading unicode-cork-oneway
TeXmacs] Loading tmuniversaltounicode
TeXmacs] Loading unicode-symbol-oneway
```
0

texmacs --delete-font-cache

eastwind · 2010-03-14 13:30:54 6
See your current RAM frequency

Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ sudo /usr/sbin/dmidecode | grep -i "current speed"
	Current Speed: 2800 MHz
	Current Speed: Unknown
	Current Speed: Unknown
	Current Speed: Unknown
	Current Speed: Unknown
```
4

/usr/sbin/dmidecode | grep -i "current speed"

eastwind · 2010-02-19 07:28:07 6
test moduli file generated for openssh

this command test the moduli file generated by the command ssh-keygen -G /tmp/moduli-2048.candidates -b 2048 . The test can be long depend of your cpu power , around 5 minutes to 30 minutes
This is sample output - yours may be different.
1

ssh-keygen -T moduli-2048 -f /tmp/moduli-2048.candidates

eastwind · 2010-01-29 19:35:21 4
1 2 3 >

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

Get notified when a job you run in a terminal is done, using NotifyOSD

This is an alias you can add to your .bashrc file to get notified when a job you run in a terminal is done. example of use sleep 20; alert Source:http://www.webupd8.org/2010/07/get-notified-when-job-you-run-in.html

Substitute audio track of video file using mencoder

Creates a new video file with video stream copied from input file and a different audio stream

Recursive find and replace file extension / suffix (mass rename files)

Find recursively all files in ~/Notes with the extension '.md' and pipe that via xargs to rename command, which will replace every '.md' to '.txt' in this example (existing files will not be overwritten).

Get free RAM in %

about how using internal separate field and store file content on variable

Fast command-line directory browsing

After typing cd directory [enter] ls [enter] so many times, I figured I'd try to make it into a function. I was surprised how smoothly I was able to integrate it into my work on the command line. Just use cdls as you would cd. It will automatically list the directory contents after you cd into the directory. To make the command always available, add it to your .bashrc file. Not quite monumental, but still pretty convenient.

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"

list block devices

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

Job Control

You're running a script, command, whatever.. You don't expect it to take long, now 5pm has rolled around and you're ready to go home... Wait, it's still running... You forgot to nohup it before running it... Suspend it, send it to the background, then disown it... The ouput wont go anywhere, but at least the command will still run...

reduce mp3 bitrate (and size, of course)

Useful if you have to put some mp3 files into mobile devices (ie mobile phones with no much memory)

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 eastwind