C# Compiler in Ubuntu

Compiler for c# code

sudo apt-get install mono-gmcs

than:

gmcs -o name_exe.estension code.cs

How to change MAC Address on ubuntu

Here a simple script


#!/bin/bash
echo "Mac change...Enter new mac: "
read mac

#a good idea is save your old mac address

ifconfig | grep HWaddr > .oldmac

ifconfig eth0 down
ifconfig eth0 hw ether $mac
ifconfig eth0 up

Send Mail Using bash shell!

To do this stuff you must install mutt ->

sudo apt-get install mutt


than create a new file and copy:

#!/bin/bash
#
#Require mutt

#check for installation - under construction

#folder=which mutt
#if [ "$folder" == '' ]; then
#   echo "No mutt found"
#else
#   echo "ok"
#exit

if [ -z "$3" ]; then
    echo "#####################################################"
    echo "Mutt shell usage."
    echo "Usage: MailTO [Address] [MailObject] [Attachment y/n]"
    echo "#####################################################"
    exit
fi

echo "Enter Mail text: "
read text
echo $text > mail.txt

if [ "$3" == 'y' ]; then
   echo "Specify attachment folder: "
   read attachment
   if [ -e $attachment ]; then
    mutt -s $2 $1 -a $attachment < mail.txt
    echo "         "
        echo "Mail send"
   else
    echo "$attachment doesn't exists"
   fi

else
   mutt -s $2 $1 < mail.txt
   echo "         "
   echo "Mail send"
fi
data=$(date +%m%d%y)

if [ -d send ]; then
   mv mail.txt send_mail/$data.$2
else
   mkdir send_mail
   mv mail.txt send_mail/$data.$2
fi



Finally...

chmod +x script_name

in sudo mode:


cp script_name /bin/

automatic alias add to bash

To automatize the adding of alias into your .bashrc without direct editing...

Create a new file and copy:


#!/bin/bash

if [ -z "$2" ]; then
    echo "usage: ./addalias [AliasName] [Command]"
    exit
fi

#for i in 'seq 1 50'

{
echo "alias $1='$2 $3 $4 $5 $6 $7 $8 $9'"
} >> .bashrc

restricted to max 9 arguments


than -> chmod +x script_name

cp script_name /bin/

Get your external ip with bash

Here a little way....

to make the script:


edit a new file with an editor (for example gedit/nedit etc..)


   

    #!/bin/bash
    wget www.whatismyip.com/automation/n09230945.asp -O - -q
    echo "                                               "


than make it executable

chmod +x script_name

To make it available in all the place of your system: copy it into /bin/