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Reorder file with max 100 file per folder

Smaller Code Better Runtime
This is sample output - yours may be different.
0

find files/ -type f | while read line; do if [ $((i++%100)) -eq 0 ]; then mkdir $((++folder)); fi; cp $line $folder/; done

sraeder · 2011-02-13 00:25:48 3
xpath function

This function uses xmllint to evaluate xpaths. Usage: xpath /some/xpath XMLfile Show Sample Output
This is sample output - yours may be different.
```
$ xpath "//head/title" index.html
<title>All commands | commandlinefu.com</title>
```
0

xpath () { xmllint --format --shell "$2" <<< "cat $1" | sed '/^\/ >/d' }

sharfah · 2011-10-05 07:45:16 14
save login cookie
This is sample output - yours may be different.
0

curl -c cookie.txt -d username=hello -d password=w0r1d http://www.site.com/login

kev · 2011-11-09 02:57:39 3
Get tagged flashcards from Anki databases

Produces a CSV file containing fronts/backs of cards with specified tag ("mytag" above). This command pulls these cards from different card databases, and allows them to be merged into one (by importing the resulting CSV file). The CSV file is not directly produced; instead of commas, "||" are inserted. In your editor of choice, modify the resulting file to put quotes around the text before || and after ||, then change || to a comma (for every line).
This is sample output - yours may be different.
0

for i in `ls *.anki`; do sqlite3 $i "select (cards.question || '||' || cards.answer) from cards, facts where cards.factid=facts.id and facts.tags like '%mytag%';" >> mytag.csv; done

joshuaeckroth · 2012-03-13 19:03:20 3
don't have video stop at EOF while it is downloading

It will just start playing and will not stop at the point that it has downloaded up to when the video starts
This is sample output - yours may be different.
0

mplayer <(tail -fc +0 <filename>)

gtmanfred · 2012-04-30 07:28:42 3
top ten shell command in bash shell
This is sample output - yours may be different.
0

cat ~/.bash_history | perl -lane 'if($F[0] eq "sudo"){$hash{$F[1]}++}else{$hash{$F[0]}++};$all++;END {@top = map {[$_, $hash{$_}]} sort {$hash{$b}<=>$hash{$a}} keys %hash;printf("%10s%10d%10.2f%%\n", $_->[0],$_->[1],$_->[1]/$all*100) for @top[0..9]}'

vinian · 2012-07-02 09:38:06 7
List MP3 albums (e.g. on iPod etc.)
This is sample output - yours may be different.
0

MP3TAG_DECODE_UTF8=0 mp3info2 -p "%a - %l\n" -R . | sort | uniq

infojunkie · 2012-10-31 01:08:09 4
Show reason of revocation for 0xDEADBEEF with gpg.

Shows a sigclass 0x20 (Key revocation) signature packet on a key, including all subpackets. Subpacket 2 is the date of revocation, subpacket 26 the relevant policy, subpacket 29 the reason of revocation (cf. http://rfc.askapache.com/rfc4880/rfc4880.html#section-5.2.3.23 ) and subpacket 16 the issuer of the revocation certificate (usually should be the same as the revoked key). Show Sample Output
This is sample output - yours may be different.
```
:signature packet: algo 1, keyid DEADBEEFDEADBEEF
	version 4, created 1361391004, md5len 0, sigclass 0x20
	digest algo 8, begin of digest ef ce
	hashed subpkt 2 len 4 (sig created 2013-02-20)
	hashed subpkt 26 len 21 (policy: http://example.net/policy)
	hashed subpkt 29 len 23 (revocation reason 0x01 (I felt funny and wanted to revoke this key))
	subpkt 16 len 8 (issuer key ID DEADBEEFDEADBEEF)
	data: [4093 bits]
```
0

gpg --export 0xDEADBEEF | gpg --list-packets | grep -Pzao ':signature packet:.*\n\t.*sigclass 0x20(\n\t.*)*'

claudius · 2013-03-05 14:11:11 5
Encrypt/decrypt a string from the command line

Need to encrypt something from the command line? I've used this before to encrypt passwords with a master password that was shared amongst a team. To decrypt: ~$ echo -n 'jA0EAwMCPdknsznAww5gySL1/quqhXg6QgQkIz5abzGP5EZgTbXCFU+y6dP8ySWovytc' | base64 --decode | gpg --decrypt gpg: CAST5 encrypted data Enter passphrase: secret gpg: encrypted with 1 passphrase HelloWorld! Show Sample Output
This is sample output - yours may be different.
```
Enter passphrase: secret
Repeat passphrase: secret
jA0EAwMCPdknsznAww5gySL1/quqhXg6QgQkIz5abzGP5EZgTbXCFU+y6dP8ySWovytc
```
0

echo 'HelloWorld!' | gpg --symmetric | base64

ryanchapman · 2013-07-06 08:30:35 46
IBM AIX: Calculate the SHA256 hashes of a directory without sha256sum

This command is for producing GNU sha256sum-compatible hashes on UNIX systems that don't have sha256sum but do have OpenSSL, such as stock IBM AIX. 1.- Saves a wrapper script for UNIX find that does the following: A.- Feeds a file to openssl on SHA256 hash calculation mode B.- Echoes the output followed by the filename 2.- Makes the file executable 3.- Runs find on a directory, only processing files, and running on each one the wrapper script that calculates SHA256 hashes Pending is figuring out how to verify a sha256sum file on a similar environment. Show Sample Output
This is sample output - yours may be different.
```
6e94b0b7fc2805ad558f8039ed038a6272f61846eaa5f4931abd826193c78b83 cognos-installers/TM1-952-AIX/952_FP2_aix.tar.gz
c9d0f04ad6f86482bf4c41ba7a303e0d8a0e8c96c9c9492bc518d2a2bc0166c7 cognos-installers/TM1-952-AIX/952_FP2_HF6_aix.tar.gz
46ede3255abff4e356b002a9cd12df259275a15910768997bfbbae3c637b7f32 cognos-installers/TM1-952-windows/TM1_9.5.2_Windows_x64.7z
92faf20dd3ff25d2c8d94308f03fd8477d0980d6b740baa96a8e79b30b49456f cognos-installers/TM1-952-windows/TM1_Workflow_9.5.2_Windows_x64.7z
630a66a1f7cc3044f370cec730820d73d66cb284a2a09e197c00f82d6900d932 cognos-installers/cognos-BI-102/cognos-FM/fm_10.2_win_ml.tar.xz
```
0

echo '#! /usr/bin/ksh\necho `cat $1 | openssl dgst -sha256` $1' > sslsha256; chmod +x sslsha256; find directory -type f -exec ./sslsha256 \{\} \;

RAKK · 2013-09-18 17:37:50 8
postgresql : drop all sequences from the public schema

This command drops all the sequences of the 'public' schema from the database. First, it constructs a 'drop sequence' instruction for each table found in the schema, then it pipes the result to the psql interactive command. See it scripted here : https://gist.github.com/cuberri/6868774#file-postgresql-drop-create-sh
This is sample output - yours may be different.
0

psql -h <ph_host> -p <pg_port> -U <pg_user> <pg_db> -t -c "select 'drop sequence \"' || relname || '\" cascade;' from pg_class where relkind='S'" | psql -h <ph_host> -p <pg_port> -U <pg_user> <pg_db>

cuberri · 2013-12-11 15:42:34 6

xcowsay "$(cowsay smile)"

brownman · 2014-06-24 05:17:04 7

Set APM_level for HDD to prevent frequent parking
This is sample output - yours may be different.
0

sudo hdparm -B 200 /dev/sda

13_rom · 2014-10-16 13:01:13 8
Find which fibre HBA a disk is connected to

Useful for big systems with lots of cards. (Update: does not work with USB disks)
This is sample output - yours may be different.
0

udevadm info -q all -n /dev/sdc | grep ID_PATH | cut -d'-' -f 2 | xargs -n 1 lspci -s

mhs · 2015-01-27 15:34:02 9
get a random regex match from a file

seed the random number generator, find all matches in a file put all matches from the capture group into an array return a random element from the array Show Sample Output
This is sample output - yours may be different.
```
25
```
0

awk 'BEGIN{srand()} match($0, /DELTA=([0-9]+);/, a) {w[i++]=a[1]} END {print w[int(rand()*i)]}' file.name

jkirchartz · 2015-11-13 17:56:34 11
Convert audio to video [m4a 2 mp4]

http://www.labnol.org/internet/useful-ffmpeg-commands/28490/
This is sample output - yours may be different.
0

ffmpeg -loop 1 -i image.jpg -i audio.m4a -c:v libx264 -c:a aac -strict experimental -b:a 192k -vf scale=720:-1 -shortest video-output.mp4

andresaquino · 2016-01-02 18:01:17 11
Amount of physical memory in HP-UX
This is sample output - yours may be different.
0

/opt/ignite/bin/print_manifest

mezgani · 2017-07-05 06:32:32 20
Create a role on the Chef server with a description
This is sample output - yours may be different.
0

knife role create role-name --description "this is a role that does cool stuff"

niko47 · 2018-10-05 16:00:41 411
Clear Cached Memory on Ubuntu

Clear Cached Memory on Ubuntu based distributions, and also display memory status. Please do not use this on a production machine unless you really really know what you are doing. Echo 3 is a kinder way of purging the memory, you can also use 'echo 2' or 'echo 1' if #1 You know what you are doing, and #2 refer to number 1 :-)
This is sample output - yours may be different.
0

sudo free && sync && sudo echo 3 | sudo tee /proc/sys/vm/drop_caches

tg0000 · 2021-09-13 16:45:20 598
Install a library to a remote repository
This is sample output - yours may be different.
0

mvn deploy:deploy-file -DgroupId=groupId -DartifactId=artifactId -Dversion=1.0 -Dpackaging=jar -Dfile=pathtolib -DrepositoryId=repository -Durl=url

agasea · 2009-04-23 18:13:08 4
get the list of temps for your hard-drives

get a list of temps of your hard-drives. Show Sample Output
This is sample output - yours may be different.
```
31 31 31 29
```
0

hddtemp /dev/sda /dev/sdb /dev/hda /dev/hdb | gawk '{print $NF}' | perl -n -e '$_ =~ s/(\d+)/print "$1 "/eg }{ print "\n"'

microft · 2009-05-20 16:01:58 4
Get your public ip using dyndns
This is sample output - yours may be different.
0

curl -s 'http://www.loopware.com/ip.php'

incognitus · 2009-12-09 11:27:48 3
Ramp the system volume up 5%

Or, aumix -v -5 Map these to key combinations in your window manager and who needs special buttons?
This is sample output - yours may be different.
0

aumix -v +5

h3xx · 2011-07-24 07:41:40 3
send cookie
This is sample output - yours may be different.
0

curl -b cookie.txt http://www.site.com/download/file.txt

kev · 2011-11-09 03:00:49 4
Send SVN diff to Meld
This is sample output - yours may be different.
0

svn diff --diff-cmd='meld' -r 100:BASE FILE

0disse0 · 2012-02-03 18:00:07 3
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Key binding to search commandlinefu.com

This is a simple bash function and a key binding that uses commandlinefu's simple and easy search API. It prompts for a search term, then it uses curl to search commandline fu, and highlights the search results with less.

Schedule a command while one is already running.

Useful when you have only one terminal session e.g. ssh. and want to queue up another command after the currently running has finished(in case if you forget to run that command). Originally used as ; python-updater when running emerge. When I have noticed that a package failed due to that command not run.

Search big files with long lines

This is a handy way to circumvent the "Maximum line length of 2048 exceeded" grep error. Once you have run the above command (or put it in your .bashrc), files can be searched using: $ lgrep search-string /file/to/search

Find your graphics chipset

Displays only the VGA adapter/chipset being used for the graphics. In this case, it gave me the "M22" and "Mobility Radeon x300" that I needed to research a graphics issue I was having.

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

#4345 also works under windows

Replace spaces in filename

This command will replace spaces in filename with underscore, for all file in directory that contain spaces.

Write comments to your history.

A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Display list of available printers

A simple X11 tea timer

wrapping the snippet in $( )& puts the whole thing in the background so you don't tie up your login session.

Calculate sum of N numbers (Thanks to flatcap)

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