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Create new repo in Cobbler for CentOS 5.3 updates

Add a repo to cobbler. To download all the repository contents the command is: cobbler reposync
This is sample output - yours may be different.
-1

cobbler repo add --name=CentOS-5.3-i386-updates --mirror=http://mirror3.mirror.garr.it/mirrors/CentOS/5.3/updates/i386/

w00binda · 2009-04-27 10:18:45 5
Today's date on a yearly calendar...

Show today date on a yearly calendar.
This is sample output - yours may be different.
-1

cal -y

andrepuel · 2009-09-02 12:57:23 49
Show apps that use internet connection at the moment.

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details. Has anyone an idea why the uniq doesn't work propperly here (see sample output)? Show Sample Output
This is sample output - yours may be different.
```
java          
pidgin         
pidgin         
pidgin         
pidgin         
pidgin         
thunderbird-b 
thunderbird-b 
thunderbird-b 
thunderbird-b 
```
-1

netstat -lantp | grep -i establ | awk -F/ '{print $2}' | uniq | sort

ktoso · 2009-09-19 13:54:36 7
Weather on the Command line

Will return temperature in Fahrenheit of a location (New York City in example). Uses a Google API. Show Sample Output
This is sample output - yours may be different.
```
35
```
-1

curl -s "http://www.google.com/ig/api?weather=New%20York" | sed 's|.*<temp_f data="$[^"]*$"/>.*|\1|'

matthewbauer · 2010-02-08 23:06:48 5
Merge tarballs

You don't need to create an intermediate file, just pipe the output directly to tar command and use stin as file (put a dash after the f flag).
This is sample output - yours may be different.
-1

cat 1.tar.gz 2.tar.gz | tar zxvif -

psychopenguin · 2010-05-09 03:50:00 5
Scroll a message in a terminal titlebar

Usage: titlescroll "message" <width> Requires command "xtitle" or replace with: echo -ne "\e]0;TEXT_HERE\007"
This is sample output - yours may be different.
-1

function titlescroll { _X=0 _TITLEMSG=$1 _WIDTH=${2:-16} _TITLEMSG=`printf "%$((${#_TITLEMSG}+$_WIDTH))s" "$_TITLEMSG"` while `true` do _X=$(((_X+1)%${#_TITLEMSG})) xtitle "${_TITLEMSG:_X:_WIDTH}" done }

romulusnr · 2010-01-12 20:48:46 3
Remove Thumbs.db files from folders
This is sample output - yours may be different.
-1

find ./ -name Thumbs.db -exec rm -rf '{}' +

thameera · 2010-08-18 02:55:38 6
Remove duplicate lines using awk
This is sample output - yours may be different.
-1

!a[$0]++

Dawn_of_the_Dead · 2014-03-16 01:50:30 6
Alternative way to get the root directory size in megabytes
This is sample output - yours may be different.
-1

expr $(fdisk -s ` grep ' / ' /etc/mtab |cut -d " " -f1`) / 1024

ncaio · 2009-05-21 17:25:38 6
do a full file listing of every file found with locate

Escapes spaces in paths.
This is sample output - yours may be different.
-1

locate -i yourfilename | sed 's/ /\\ /g' | xargs ls -lah | less

unixmonkey23919 · 2011-07-26 13:00:39 4
Get current stable kernel version string from kernel.org

Fetches latest stable release version from first entry between tags Show Sample Output
This is sample output - yours may be different.
```
3.12.5
```
-1

curl -s -k https://www.kernel.org/feeds/kdist.xml | sed -n -e 's@.*<guid>$.*$</guid>.*@\1@p' | grep 'stable' | head -1 | awk -F , '{print $3}'

Wafelijzer · 2013-12-17 23:59:27 7
Format a flooppy with windows compatible disk

The 1440 is the number of bytes, and the A: specifies the floppy drive.
This is sample output - yours may be different.
-1

mformat -f 1440 A:

eastwind · 2009-12-10 06:51:20 3
[Gentoo] Input modules, commented, in your module.autoload file

Whenever you compile a new kernel, there are always new modules. The best way to make sure you have the correct modules loaded when you boot is to add all your modules in the modules.autoload file (they will be commented) and uncomment all those modules you need. Also a good way to keep track of the available modules in your system. For other distros you may have to change the name of the file to /etc/modprobe.conf Show Sample Output
This is sample output - yours may be different.
```
# /etc/modules.autoload.d/kernel-2.6:  kernel modules to load when system boots.
#
# Note that this file is for 2.6 kernels.
#
# Add the names of modules that you'd like to load when the system
# starts into this file, one per line.  Comments begin with # and
# are ignored.  Read man modules.autoload for additional details.

# For example:
# aic7xxx
# mixer-oss.ko
# pcm-oss.ko
# seq-device.ko
# seq-oss.ko
# snd-seq.ko
```
-1

find /lib/modules/`uname -r`/ -type f -iname '*.o' -or -iname '*.ko' |grep -i -o '[a-z0-9]*[-|_]*[0-9a-z]*\.ko$' |xargs -I {} echo '# {}' >>/etc/modules.autoload.d/kernel-2.6

paragao · 2010-01-13 02:12:08 4
Function to bind MySQL hostport to forward remote MySQL connection to localhost.

Create a secure tunnelled connection for access to a remote MySQL database. For example, connect with MySQL Workbench to root@127.0.0.1:13306. Show Sample Output
This is sample output - yours may be different.
```
$ sshmysql [user@]remote-server
[1] 10653
```
-1

sshmysql() { ssh -L 13306:127.0.0.1:3306 -N $* & }

peterRepeater · 2011-09-01 10:21:55 8
show your locale language keyboard setting

Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ locale | grep LANG=
LANG=fr_BE.UTF-8
```
-1

locale | grep LANG=

eastwind · 2009-12-10 07:24:01 5
Play newest or random YouTube video

newly downloaded videos goyoutube random goyoutube rand This command assumes you've already downloaded some YouTube .mp4 or .flv video files via other means. Requires 'shuf', or your own stdin shuffler.
This is sample output - yours may be different.
-1

goyoutube() { d=/path/to/videos p=$d/playlist m=$d/*.mp4 f=$d/*.flv if [ "$1" == 'rand' ]; then ls -1 $m $f | shuf >$p else ls -1t $m $f >$p fi mplayer -geometry 500x400 -playlist $p }

meathive · 2010-04-11 18:53:49 4
Testing
This is sample output - yours may be different.
-1

who am i | wc -l

himanshu · 2012-03-20 10:32:17 5
View the list of files and directories in an archive with less.

This will print out the files and directories in a gzipped tarball.
This is sample output - yours may be different.
-1

less file.tar.gz

allbad · 2009-03-15 23:00:05 15
All IP connected to my host

find all computer connected to my host through TCP connection Show Sample Output
This is sample output - yours may be different.
```
81.91.145.204
85.133.199.175
85.185.21.146
91.186.200.13
91.189.90.40
91.98.155.188
91.99.41.81
92.50.59.10
94.182.63.188
```
-1

netstat -nut | awk '$NF=="ESTABLISHED" {print $5}' | cut -d: -f1 | sort -u

bitbasher · 2011-07-27 07:24:10 3
Sum up total size and count of all certain filename pattern/regex
This is sample output - yours may be different.
-1

find -regextype posix-egrep -regex ".*/[A-Z]{3}_201009[0-9]{2}.*" -printf "%f %s\n" | awk '{ SUM += $2;COUNT++ } END { print SUM/1024 " kb in " COUNT " files" }'

taintedkernel · 2010-09-21 15:41:45 3
Run a second copy of Firefox using the same profile on Mac OS X
This is sample output - yours may be different.
-1

(cd /Applications/Firefox.app/Contents/MacOS; ./firefox-bin -p default --no-remote)

DEinspanjer · 2009-02-18 21:35:02 5
Unlock your KDE4 session remotely (for boxes locked by KDE lock utility)

With this you can unlock your KDE4 session via SSH, via mobile phone SSH or e. g. scheduled task in crontab (without asking password). Useful when you need to grant somebody access to your locked profile remotely. Create an alias (e. g. as "unlock") and use with remote KDE4 lock. This works only on KDE4 boxes because KDE 3 is using utility with another name. Tested on Kubuntu 8.10.
This is sample output - yours may be different.
-1

killall -s 9 krunner_lock

b2e · 2009-05-21 22:29:06 7
List all available commands
This is sample output - yours may be different.
-1

in bash hit "tab" twice and answer y

sdadh01 · 2009-11-12 17:55:37 4
x bottles of beer on the wall graph

Will create a graph of the results for "x bottles of beer on the wall". Requires Gnuplot. Inspired by an xkcd comic: http://xkcd.com/715/ For sample output see: http://tr.im/xbottlesofbeer Show Sample Output
This is sample output - yours may be different.
```
See http://tr.im/xbottlesofbeer
```
-1

(echo "plot '-' with lines"; for x in $(seq 1 100); do curl -s "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=$(echo $x bottles of beer on the wall|sed 's/ /%20/g')"|sed 's/.*"estimatedResultCount":"$[^"]*$".*/\1\n/';done)|gnuplot -persist

matthewbauer · 2010-03-17 21:04:36 4
Remove executable bit from all files in the current directory recursively, excluding other directories, firm permissions

forces user to rw, group to r, and other to no access. files will not be marked executable. directories will be executable for users and groups only. Show Sample Output
This is sample output - yours may be different.
```
-rw-r-----   1 www-data www-data 3353273 Jun 21 17:58 XP_Help_20100621.zip
drwxr-x---   8 www-data www-data    4096 Jun  3  2009 Widgetized_HomePage
drwxr-x---  12 www-data www-data    4096 Jan 12  2010 Wizard_Old_Concept
drwxr-x---   5 www-data www-data    4096 Oct 21  2009 Wizard_New_Concept
```
-1

chmod -R u=rw-x+X,g=r-x+X,o= .

donnoman · 2010-07-16 18:42:00 5
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tail, with specific pattern colored

Find

A lot of X applications accept --geometry parameter so that you can set application size and position. But how can you figure out the exact arguments for --geometry? Launch an application, resize and reposition its window as needed, then launch xwininfo in a terminal an click on the application window. You will see some useful window info including its geometry.

Log your internet download speed

This will log your internet download speed. You can run $gnuplot -persist

Create a visually twisted effect by alternating the direction of the "staples" effect vertically. The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right.

The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right. For odd-numbered lines (with an index j), the ((j + i) % 2 == 0) condition is satisfied. In this case, the line width is set to i, resulting in the line moving from left to right. For even-numbered lines, the ((j + i) % 2 == 0) condition is not satisfied. The line width is set to $(tput cols) - i, causing the line to move from right to left. This alternating direction of movement creates a twisted visual effect as the lines appear to move in opposite directions. The code runs in a continuous loop, repeatedly updating the lines with changing background colors. There is a slight pause of 0.05 seconds between each iteration to control the speed of the animation.

Print a list of all hardlinks in the working directory, recursively

libpurple likes to hardlink files repeatedly. To ignore libpurple, use sed: | sed '/\.\/\.purple/d'

list all opened ports on host

Rename files in batch

Create an audio test CD of sine waves from 1 to 99 Hz

This command creates and burns a gapless audio CD with 99 tracks. Each track is a 30 second sine wave, the first is 1 Hz, the second 2 Hz, and so on, up to 99 Hz. This is useful for testing audio systems (how low can your bass go?) and for creating the constant vibrations needed to make non-Newtonian fluids (like cornstarch and water) crawl around. Note, this temporarily creates 500MB of .cdda files in the current directory. If you don't use the "rm" at the end of the command, you can burn more disks using $ cdrdao write cdrdao.toc Prerequisites: a blank CD-R in /dev/cdrw, sox (http://sox.sourceforge.net/), and cdrdao (http://cdrdao.sourceforge.net/). I'm also assuming a recent version of bash for the brace expansion (which just looks nicer than using seq(1), but isn't necessary).

create new branch from stashed changes

from http://git-scm.com/book/en/Git-Tools-Stashing Useful for when stash cannot be applied to current branch

Test file system type before further commands execution

Exclude 400 client hosts with NFS auto-mounted home directories. Easily modified for inclusion in your scripts.

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