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Find and copy scattered mp3 files into one directory

I used this command to recursively gather all mp3 files that were previously imported into their own directories (sorted by band name) in Songbird.
This is sample output - yours may be different.
1

find . -name '*.mp3' -type f -exec sh -c 'exec cp -f "$@" /home/user/dir' find-copy {} +

mariusz · 2009-12-08 19:31:16 4
prints line numbers

Show Sample Output
This is sample output - yours may be different.
```
same thing
```
28

nl

solarislackware · 2009-12-08 19:30:32 16
Quickly batch resize images

-geometry (preserves values of height and width given, and aspect ratio). WARNING: While 'resize' creates resized copies of original files, 'mogrify' works on the original files, replacing them. It will overwrite the source files, use with caution, and backup regularly.
This is sample output - yours may be different.
2

mogrify -geometry 800x600 *.jpg

mariusz · 2009-12-08 19:23:19 3
prints line numbers
This is sample output - yours may be different.
5

cat -n

putnamhill · 2009-12-08 16:35:55 16
prints line numbers

No need $_ netp ;)
This is sample output - yours may be different.
0

perl -pe 'print "$. "' <file>

sputnick · 2009-12-08 16:11:51 10
Generate a binary file with all ones (0xff) in it

This is similar to how you would generate a file with all zeros dd if=/dev/zero of=allzeros bs=1024 count=2k
This is sample output - yours may be different.
4

tr '\000' '\377' < /dev/zero | dd of=allones bs=1024 count=2k

azeey · 2009-12-08 16:05:28 4
prints line numbers
This is sample output - yours may be different.
-1

grep -n . datafile ;

glaudiston · 2009-12-08 15:41:22 3
prints line numbers

This command prints all lines of a file together with is line number. Show Sample Output
This is sample output - yours may be different.
```
1 - #include <vector>
2 - #include <iostream>
3 - #include <sstream>
4 - #include <algorithm>
5 - 
6 - class Ponto{
```
-1

perl -ne 'print "$. - $_"' infile.txt

netp · 2009-12-08 15:27:39 3
Use curl on Windows to bulk-download the Savitabhabhi Comic Strip (for Adults)

Bulk downloads the comic strip JPG files for the adult cartoon Savitabhabhi, storing each set in it's own folder. Requires manual removal of "non-image" files that maybe created because each series may differ in length. The command can be easily adapted for UNIX flavours. You need to have cURL in your path.
This is sample output - yours may be different.
-1

for /L %%x in (1,1,16) do mkdir %%x & curl -R -e http://www.kirtu.com -o %%x/#1.jpg http://www.kirtu.com/toon/content/sb%x/english/sb%x_en_[001-070].jpg

MyTechieself · 2009-12-08 15:01:16 8
Update twitter via curl (and also set the "from" bit)

An improvement of the original (at: http://www.commandlinefu.com/commands/view/2872/update-twitter-via-curl) in the sense that you see a "from cURL" under your status message instead of just a "from API" ;-) Twitter automatically links it to the cURL home page. Show Sample Output
This is sample output - yours may be different.
```
Enter host password for user 'twitter-username':
```
14

curl -u twitter-username -d status="Hello World, Twitter!" -d source="cURL" http://twitter.com/statuses/update.xml

MyTechieself · 2009-12-08 14:54:33 8
Monitoring sessions that arrive at your server
This is sample output - yours may be different.
1

watch -n 1 -d "finger"

tsiqueira · 2009-12-08 14:53:18 3
Download streaming video in mms

require mimms package
This is sample output - yours may be different.
1

mimms mms://Your_url.wmv

eastwind · 2009-12-08 14:45:12 4
Know when you will type :q in your term instead of vi(m), the alias will chewed you out.

For vi(m) users : Add it in your ~/.bashrc Add an "exit" @ the end if you are masochist ;) Show Sample Output
This is sample output - yours may be different.
```
this is NOT vi(m) :/
```
-1

alias :q='tput setaf 1; echo >&2 "this is NOT vi(m) :/"; tput sgr0'

sputnick · 2009-12-08 12:59:44 3
Normalize volume in your mp3 library

Execute this in the root of your music library and this recurses through the directories and normalizes each folder containing mp3s as a batch. This assumes those folders hold an album each. The command "normalize-audio" may go by "normalize" on some systems.
This is sample output - yours may be different.
-2

find . -type d -exec sh -c "normalize-audio -b \"{}\"/*.mp3" \;

Mikelifeguard · 2009-12-08 03:13:13 7
determine if tcp port is open

@putnamhill, no need if statement in that case. && is a AND and || is a OR
This is sample output - yours may be different.
6

nc -zw2 www.example.com 80 && echo open

sputnick · 2009-12-07 21:35:25 11
determine if tcp port is open

Requires netcat.
This is sample output - yours may be different.
2

if (nc -zw2 www.example.com 80); then echo open; fi

putnamhill · 2009-12-07 20:04:55 3
Salvage a borked terminal

Also works in places where reset does not.
This is sample output - yours may be different.
1

echo <ctrl+v><ctrl+o><enter>

mkobler · 2009-12-07 20:02:33 7
Search trought pidgin's conversation logs for "searchterm", and output the result.

will search trought pidgin conversation logs for "searchterm", and output them stripping the html tags. The "sed" command is optionnal if your logs are stored in plain text format.
This is sample output - yours may be different.
2

grep -Ri searchterm ~/.purple/logs/* | sed -e 's/<.*?>//g'

Nostoc · 2009-12-07 19:38:18 6
Show the meta information on a package (dependency , statuts ..) on debian derivative distro
This is sample output - yours may be different.
-4

aptitude show packages_name

metalx1000 · 2009-12-07 19:27:33 3
Shorten url with is.gd using curl, perl

// This is description for the old command: Unfortunately we to encode the URL. It can't be done with bash (without building it ourselves) so I used Perl? Example with Perl: curl -s http://is.gd/api.php?longurl=`perl -MURI::Escape -e "print uri_escape('http://www.google.com/search?hl=en&source=hp&q=commandlinefu&aq=0&oq=commandline');"` Example without Perl: curl http://is.gd/api.php?longurl=http://www.google.com Most urls doesn't use & and ? anymore (SEO etc) so in most cases you can just use the simple version. :) Show Sample Output
This is sample output - yours may be different.
```
http://is.gd/5faqp
```
0

curl -s "http://is.gd/api.php?longurl=[long_url]"

Josso · 2009-12-07 18:52:04 8
Ruby - nslookup against a list of IP`s or FQDN`s

This version uses host and no ruby.
This is sample output - yours may be different.
1

while read n; do host $n; done < list

putnamhill · 2009-12-07 18:03:20 4
Ruby - nslookup against a list of IP`s or FQDN`s
This is sample output - yours may be different.
-2

ruby -e 'File.foreach("list") {|i| print `nslookup #{i}`}'

alienone · 2009-12-07 17:29:59 3
Move all files untracked by git into a directory
This is sample output - yours may be different.
0

git clean -n | sed 's/Would remove //; /Would not remove/d;' | xargs mv -t stuff/

drmaciver · 2009-12-07 13:13:14 6
Fill up disk space (for testing)

Put into some file. No special purpouse, just for fun...
This is sample output - yours may be different.
1

tail $0 >> $0

yooreck · 2009-12-07 12:33:41 4
Killing multiplpe process for one program like apache, wget, postfix etc.
This is sample output - yours may be different.
-2

ps ax| awk '/[h]ttpd/{print $1}'| xargs kill -9

r00t4u · 2009-12-07 09:53:18 4
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function to compute what percentage of X is Y? Where percent/100 = X/Y => percent=100*X/Y

This function make it easy to compute X/Y as a percentage. The name "wpoxiy" is an acronym of "what percentage of X is Y"

Shows what processes need to be restarted after system upgrade

emerge,apt-get,yum... all update your system. This will at some point replace either a runtime dependency or a process (which is still running). This oneliner will list what processes need to be restarted

Delete all files found in directory A from directory B

This command is useful if you accidentally untar or unzip an archive in a directory and you want to automatically remove the files. Just untar the files again in a subdirectory and then run the above command e.g. $ for file in ~/Desktop/temp/*; do rm ~/Desktop/`basename $file`; done

Switch to a user with "nologin" shell

You need sudo privileges for this command. Replace username with actual username.

Generate a sequence of numbers.

Edit 2 or more files in vim using vim -d

Use vim's diff mode to edit two or more files in one window. The '+diffoff!' turns off diff highlighting when the session is started. Use ctrl+w + ctrl+w to switch between windows.

convert pdf into multiple png files

syntax for resolution is: (see "man gs" for further informations) -rnumber -rnumber1xnumber2

Real time duplication of Apache app traffic to a second server

This takes the stream created by apache requests containing jsp and funnels them to another server. I'm using this for simulating real time traffic. The nice command gives ssh maximum CPU cycles, awk & grep strip out everything served by apache. Putting parallel on curl is important because curl is synchronous and waits for the response. Yes, I thought about using wget but it didn't seem any easier. Also, if you figure out how to run this in the background let me know. Every time I background it it stops. If you have multiple front end servers just run multiple instances of this.

Target a specific column for pattern substitution

Awk replaces every instance of foo with bar in the 5th column only.

Use tee + process substitution to split STDOUT to multiple commands

Using process substitution, we can 'trick' tee into sending a command's STDOUT to an arbitrary number of commands. The last command (command4) in this example will get its input from the pipe.

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