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Show local/public IP adresses with or without interface argument using a shell function for Linux and MacOsX

Like the tiltle said, you can use an argument too ( the interface ) MyIps eth0 will show only the IP of this interface and the public IP ( tested with Linux ) You can add that function in ~/.bashrc, then . ~/.bashrc Now you are ready to call this function in all your terms... Show Sample Output
This is sample output - yours may be different.
```
local:
10.0.0.1
10.0.0.221
192.168.0.1

public:
212.34.55.218
```
1

MyIps(){ echo -e "local:\n$(ifconfig $1 | grep -oP 'inet (add?r:)?\K(\d{1,3}\.){3}\d{1,3}')\n\npublic:\n$(curl -s sputnick-area.net/ip)"; }

sputnick · 2009-12-06 22:52:31 6

Show the meta information on a package (dependency , statuts ..) on debian derivative distro

Show Sample Output

-2

apt-cache show Your_package

eastwind · 2009-12-06 14:50:34 3

List content of a package (debian derivative distro)

Show Sample Output

-2

dpkg -L Your_Package

eastwind · 2009-12-06 14:49:04 3

Finding all numbers that are bigger then 1 in vim

If we have a csv like structure: 10,50,'something' And we wish to find all numbers that are bigger then 1 (or find a number that is bigger then 1 regardless of the structure), including numbers that start with 1 such as 10 and above. Show Sample Output
This is sample output - yours may be different.
```
10
```
0

/^$[2-9]\d*\|1\d+$

ik_5 · 2009-12-06 13:01:48 3
Audible warning when a downloading is finished

This command can be set as an alias in ~/.bashrc For example (in my case) I have : alias watchDl='while [ "$(ls $filePart)" != "" ]; do sleep 5; done; mpg123 /home/.../warning.mp3" ' Then I just need to - initialize filePart (e.g. filePart="*bigFile*rar.part") - launch watchDl
This is sample output - yours may be different.
1

while [ "$(ls $filePart)" != "" ]; do sleep 5; done; mpg123 /home/.../warning.mp3

mrttlemonde · 2009-12-06 10:55:09 9
Kill multiple Locked connection by a single user in MYSQL DB
This is sample output - yours may be different.
0

for i in `mysqladmin -h x.x.x.x --user=root -pXXXX processlist | grep <<username>>| grep <<Locked>>| awk {'print $2'}` do mysqladmin -h x.x.x.x --user=root -pXXX kill $i; done;

r00t4u · 2009-12-06 05:46:48 3
Killing multiplpe process for one program like apache, wget, postfix etc.
This is sample output - yours may be different.
-2

ps aux| grep -v grep| grep httpd| awk {'print $2'}| xargs kill -9

r00t4u · 2009-12-06 05:39:50 7

Determining the excat memory usages by certain PID

this command gives you the total number of memory usuage and open files by the perticuler PID. Show Sample Output

pmap -d <<pid>>

r00t4u · 2009-12-06 05:34:46 8

Display Dilbert strip of the day

Requires display. Corrected version thanks to sputnick and eightmillion user.
This is sample output - yours may be different.
2

display http://dilbert.com$(curl -s dilbert.com|grep -Po '"\K/dyn/str_strip(/0+){4}/.*strip.[^\.]*\.gif')

wizel · 2009-12-05 19:35:27 13

convert pdf to graphic file format (jpg , png , tiff ... )

need imagemagick package Show Sample Output

convert sample.pdf sample.jpg

eastwind · 2009-12-05 19:27:37 8

mount a cdrom
This is sample output - yours may be different.
2

mount -t iso9660 /dev/cdrom /media/cdrom

eastwind · 2009-12-05 18:56:33 3
Show Network IP and Subnet

same thing as the other
This is sample output - yours may be different.
-1

ipcalc $(ifconfig eth0 | grep "inet addr:" | cut -d':' -f2,4 | sed 's/.+Bcast:/\//g') | awk '/Network/ { print $2 } '

solarislackware · 2009-12-05 15:00:32 3
Return IP Address

If you are interested in interfaces other than eth0 you will need to change eth0 to your interface name. You could use this mammoth to nab the ip4 addresses of all your interfaces perl -e '@_=`ifconfig -a`; sort(@_); foreach(@_) { /(inet addr\:)(\d+.\d+.\d+.\d+ )/; $_=$2; @uniq=grep($_ ne $prev && (($prev) = $_), @_);} print join "\n",@uniq,"\n"; ' it seems silly to have all this code when the following will work fine ifconfig -a | grep "inet " | awk -F":" ' { print $2 } ' | cut -d " " -f1 Show Sample Output
This is sample output - yours may be different.
```
10.10.10.10
```
0

perl -e '$_=`ifconfig eth0`;/\d+.\d+.\d+.\d+ /; print $&,"\n";'

solarislackware · 2009-12-05 14:24:48 33
Return IP Address
This is sample output - yours may be different.
-3

awk '/inet end/ {print $3}' <(ifconfig eth0)

voyeg3r · 2009-12-05 10:45:31 4
Router discovery
This is sample output - yours may be different.
0

awk 'NR==2 {print $1}' /proc/net/arp

voyeg3r · 2009-12-05 10:36:06 3
Show local IP
This is sample output - yours may be different.
-2

ifconfig eth0 | grep "inet:" | cut -d ":" -f2 | cut -d " " -f1

guelfoweb · 2009-12-05 02:59:18 8
Router discovery
This is sample output - yours may be different.
4

sudo arp-scan 192.168.1.0/24 -interface eth0

guelfoweb · 2009-12-05 01:35:50 6
Show Network IP and Subnet

Require ips and ipcalc Show Sample Output
This is sample output - yours may be different.
```
192.168.0.1/24
```
-2

IP=`ifconfig eth0 | grep "inet addr:" | ips |cut -d ":" -f 2 | cut -d " " -f 1`;SUBNET=`ifconfig eth0 | grep "inet addr:" | ips |cut -d ":" -f 3 | cut -d " " -f 1`;RANGE=`ipcalc $IP/$SUBNET | grep "Network:" | cut -d ' ' -f 4`;echo $RANGE

guelfoweb · 2009-12-05 01:19:31 3
Capture data in ASCII. 1500 bytes

Sniffing traffic on port 80 only the first 1500 bytes
This is sample output - yours may be different.
2

tcpdump -ieth0 -n tcp port 80 -A -s1500

guelfoweb · 2009-12-05 00:59:16 3
Return IP Address
This is sample output - yours may be different.
0

ifconfig -a| awk 'BEGIN{FS="[ :]+"} /Bcast/{print $4}'

unixmonkey7109 · 2009-12-05 00:18:24 7
Make ABBA better (requires firefox)

ABBA would be more entertaining if they sang this.
This is sample output - yours may be different.
0

wget -O - -q http://www.azlyrics.com/lyrics/abba/takeachanceonme.html | sed -e 's/[cC]hance/dump/g' > ~/tdom.htm && firefox ~/tdom.htm

tighe · 2009-12-04 22:56:00 5

Monitor memory usage

Monitor with watch command and vmstat, memory usage Show Sample Output

watch vmstat -sSM

servermanaged · 2009-12-04 22:35:45 6

Return IP Address

grabs your local IP Address. Show Sample Output
This is sample output - yours may be different.
```
192.168.1.100
```
-3

ifconfig -a|grep Bcast:|cut -d\: -f2|awk '{print $1}'

metalx1000 · 2009-12-04 21:00:46 5
get daily wizard of id comic

Requires the date command. This also works with some other comics. Here's a bash script that displays daily Garfield, Id, and Andy Capp: http://putnamhill.net/cgi-bin/yahoo-comics.sh?ga,crwiz,crcap
This is sample output - yours may be different.
0

curl -o id.gif `date +http://d.yimg.com/a/p/uc/%Y%m%d/largeimagecrwiz%y%m%d.gif`

putnamhill · 2009-12-04 20:16:32 3
Find file containing namespace in a directory of jar files.

You could subsitute javax.servlet for any namespace you need. Show Sample Output
This is sample output - yours may be different.
```
javax.jsp_1.1.0.0_2-1.jar
javax.servlet_1.0.0.0_2-5.jar
```
1

for f in *.jar; do if jar -tf $f | grep -q javax.servlet; then echo $f; fi; done

wekoch · 2009-12-04 20:11:36 3
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Install pip with Proxy

Installs pip packages defining a proxy

Mark packages installed with build-dep for autoremove (on Debian/Ubuntu)

Replace PACKAGE with desired package name. Found here: http://mikebeach.org/2011/04/undo-apt-get-build-dep/

What is my public IP-address?

Short command, easy to remember

power off system in X hours form the current time, here X=2

The wisdom of Cave Johnson

There's been a similar Futurama thing around for a while, which grabs a quote from the /. headers [curl -Ism3 slashdot.org | egrep "^X-(F|B|L)" | cut -d \- -f 2- | fmt -w $(tput cols)]. Same deal, but more likely to stop working when someone forgets to pay the bill on the domain. Until then: Cave Johnson!

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"

Directory Tree

tree has lots of parms - man is your friend

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.

Decrypt passwords from Google Chrome and Chromium.

Read this before you down voting and comment that it is not working -> Wont work on latest versions ~75> since database file is locked and has to be decrypted. This is useful if you have an old hdd with a chrome installation and want to decrypt your old passwords fast.

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

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