Cloud Network

Thursday, March 5, 2015

Sailing Through The World of Linux BASH Scripting – Part III

Cloud Network March 05, 2015

Redhat Linux

Sailing Through The World of Linux BASH Scripting – Part III

Hello Everyone,

In this tutorial,

Let Us Create a Sailing Through The World of Linux BASH Scripting – Part III

You Can also Configure in Redhat Linux, Ubuntu, Fedora, CentOS, LinuxMint, Oracle Linux, Cloud Linux.

Move Current Working Directory

Create a Random File or Folder

Script to Converts UPPERCASE to lowercase

Simple Calculator Program

Move Current Working Directory

#! /bin/bash

LEVEL=$1

for ((i = 1; i <= LEVEL; i++))

CDIR=../$CDIR done cd $CDIR

echo "You are in: "$PWD

exec /bin/bash

Create a Random File or Folder

#! /bin/bash

echo "Hello $USER";

echo "$(uptime)" >> "$(date)".txt

echo "Your File is being saved to $(pwd)“

echo‘ : Prints everything written within the quotes.

‘$‘ : Is a shell variable.

‘>>‘ : The output is redirected to the output of date command followed by txt extension

Script to Converts UPPERCASE to lowercase

touch small.txt

#!/bin/bash

echo -n "Enter File Name : "

read fileName

if [ ! -f $fileName ]; then

echo "Filename $fileName does not exists"

exit 1

tr '[A-Z]' '[a-z]' < $fileName >> small.txt

Simple Calculator Program

#! /bin/bash

clear

sum=0

i="y"

echo " Enter one no."

read n1

echo "Enter second no."

read n2

while [ $i = "y" ]

echo "1.Addition"

echo "2.Subtraction"

echo "3.Multiplication"

echo "4.Division"

echo "Enter your choice"

read ch

case $ch in

1)sum=`expr $n1 + $n2`

echo "Sum ="$sum;;

2)sum=`expr $n1 - $n2`

echo "Sub = "$sum;;

3)sum=`expr $n1 \* $n2`

echo "Mul = "$sum;;

4)sum=`expr $n1 / $n2`

echo "Div = "$sum;;

*)echo "Invalid choice";;

esac

echo "Do u want to continue (y/n)) ?"

read i

if [ $i != "y" ]

then

exit

done

NOTE :- For Any Clarification Please Below

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Mathematical Aspect of Linux Shell Programming – Part IV

Cloud Network March 05, 2015

Redhat Linux

Mathematical Aspect of Linux Shell Programming – Part IV

Hello Everyone,

In this tutorial,

Let Us Create a Mathematical Aspect of Linux Shell Programming – Part IV

You Can also Configure in Redhat Linux, Ubuntu, Fedora, CentOS, LinuxMint, Oracle Linux, Cloud Linux.

Script 1: Additions

Script 2: Substraction

Script 3: Multiplication

Script 5: Table

Script 4: Division

Script 5: Table

Script 6: EvenOdd

Script 7: Factorial

Script 1: Additions

Step1 :- touch Addition.sh -- (Create a file)

Step2 :- vi Addition.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo “Enter the First Number: ”

read a

echo “Enter the Second Number: ”

read b

x=$(expr "$a" + "$b")

echo $a + $b = $x

Step3 :- chmod 755 Addition.sh -- (Permission giving)

Step4 :- ./Addition.sh -- (Finally Run Script)

Script 2: Subtraction

Step1 :- touch Substraction.sh -- (Create a file)

Step2 :- vi Substraction.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo “Enter the First Number: ”

read a

echo “Enter the Second Number: ”

read b

x=$(($a - $b))

echo $a - $b = $x

Step3 :- chmod 755 Substraction.sh -- (Permission giving)

Step4 :- ./ Substraction.sh -- (Finally Run Script)

Script 3: Multiplication

Step1 :- touch Multiplication.sh -- (Create a file)

Step2 :- vi Multiplication.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo “Enter the First Number: ”

read a

echo “Enter the Second Number: ”

read b

echo "$a * $b = $(expr $a \* $b)"

Step3 :- chmod 755 Multiplication.sh -- (Permission giving)

Step4 :- ./ Multiplication.sh -- (Finally Run Script)

Script 4: Division

Step1 :- touch Division.sh -- (Create a file)

Step2 :- vi Division.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo “Enter the First Number: ”

read a

echo “Enter the Second Number: ”

read b

echo “$a / $b = $(expr $a / $b)”

Step3 :- chmod 755 Division.sh -- (Permission giving)

Step4 :- ./Division.sh -- (Finally Run Script)

Script 5: Table

Step1 :- touch Table.sh -- (Create a file)

Step2 :- vi Table.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo “Enter The Number upto which you want to Print Table: ”

read n

i=1

while [ $i -ne 10 ]

i=$(expr $i + 1)

table=$(expr $i \* $n)

echo $table

done

Step3 :- chmod 755 Table.sh -- (Permission giving)

Step4 :- ./Table.sh -- (Finally Run Script)

Script 6: EvenOdd

Step1 :- touch EvenOdd.sh -- (Create a file)

Step2 :- vi EvenOdd.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo "Enter The Number"

read n

num=$(expr $n % 2)

if [ $num -eq 0 ]

then

echo "is a Even Number"

else

echo "is a Odd Number"

Step3 :- chmod 755 EvenOdd.sh -- (Permission giving)

Step4 :- ./EvenOdd.sh -- (Finally Run Script)

Script 7: Factorial

Step1 :- touch Factorial.sh -- (Create a file)

Step2 :- vi Factorial.sh -- (Editing a file & Save, Quit)

#!/bin/bash

echo "Enter The Number"

read a

fact=1

while [ $a -ne 0 ]

fact=$(expr $fact \* $a)

a=$(expr $a - 1)

done

echo $fact

Step3 :- chmod 755 Factorial.sh -- (Permission giving)

Step4 :- ./Factorial.sh -- (Finally Run Script)

NOTE :- For Any Clarification Please Below

Comment,

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####----------------------------------------------------------------------------------------####

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Hope U Like it........

Shell Scripts for Linux Newbies to Learn Shell Programming – Part II

Cloud Network March 05, 2015

Ubuntu

Shell Scripts for Linux Newbies to Learn Shell Programming – Part II

Hello Everyone,

In this tutorial,

Let Us Shell Scripts for Linux to Learn Shell Programming – Part II

You Can also Configure in Redhat Linux, Ubuntu, Fedora, CentOS, LinuxMint, Oracle Linux, Cloud Linux.

Script 1: Drawing a Special Pattern

#!/bin/bash

MAX_NO=0

echo -n "Enter Number between (5 to 9) : "

read MAX_NO

if ! [ $MAX_NO -ge 5 -a $MAX_NO -le 9 ] ; then

echo "WTF... I ask to enter number between 5 and 9, Try Again“

exit 1

clear

for (( i=1; i<=MAX_NO; i++ )) do for (( s=MAX_NO; s>=i; s-- ))

echo -n " "

done

for (( j=1; j<=i; j++ )) do echo -n " ." done echo "" done ###### Second stage ###################### for (( i=MAX_NO; i>=1; i-- ))

for (( s=i; s<=MAX_NO; s++ ))

echo -n " "

done

for (( j=1; j<=i; j++ ))

echo -n " ."

done

echo ""

done

echo -e "\n\n\t\t\t Whenever you need help, cloudnetwork.in is always there"

Script 2: Creating Colorful Script

#!/bin/bash

clear

echo -e "33[1m Hello World"

# bold effect

echo -e "33[5m Blink"

# blink effect

echo -e "33[0m Hello World"

# back to normal

echo -e "33[31m Hello World“

# Red color

echo -e "33[32m Hello World"

# Green color

echo -e "33[33m Hello World"

# See remaining on screen

echo -e "33[34m Hello World"

echo -e "33[35m Hello World"

echo -e "33[36m Hello World"

echo -e -n "33[0m"

# back to normal

echo -e "33[41m Hello World"

echo -e "33[42m Hello World"

echo -e "33[43m Hello World"

echo -e "33[44m Hello World"

echo -e "33[45m Hello World"

echo -e "33[46m Hello World"

echo -e "33[0m Hello World"

Script 3: Encrypt a File/Directory

yum install pinentry-gui

apt-get install pinentry-gui

Touch Encrypt.sh

Vi Encrypt.sh

#!/bin/bash

echo "Welcome, I am ready to encrypt a file/folder for you"

echo "currently I have a limitation, Place me to thh same folder, where a file to be encrypted is present“

echo "Enter the Exact File Name with extension"

read file;

gpg -c $file

echo "I have encrypted the file successfully..."

echo "Now I will be removing the original file"

rm -rf $file

Script 4: Checking Server Utilization

#!/bin/bash

date;

echo "uptime:"

uptime

echo "Currently connected:"

echo "--------------------"

echo "Last logins:"

last -a |head -3

echo "--------------------"

echo "Disk and memory usage:"

df -h | xargs | awk '{print "Free/total disk: " $11 " / " $9}'

free -m | xargs | awk '{print "Free/total memory: " $17 " / " $8 " MB"}'

echo "--------------------"

start_log=`head -1 /var/log/messages |cut -c 1-12`

oom=`grep -ci kill /var/log/messages`

echo -n "OOM errors since $start_log :" $oom

echo ""

echo "--------------------"

echo "Utilization and most expensive processes:"

top -b |head -3

echo

top -b |head -10 |tail -4

echo "--------------------"

echo "Open TCP ports:"

nmap -p- -T4 127.0.0.1

echo "--------------------"

echo "Current connections:"

ss -s

echo "--------------------"

echo "processes:"

ps auxf --width=200

echo "--------------------"

echo "vmstat:"

vmstat 1 5

1. ‘>‘ : the redirection operator causes a file creation, and if it does exist, the contents are overwritten.

2. ‘>>‘ : when you use >>, you are adding information, rather than replacing it.

3. ‘>>‘ is safe, as compared to ‘>‘

Script 5: Check Disk Space and Sends an Email Alert

MAX=95

EMAIL=USER@domain.com

PART=sda1

USE=`df -h |grep $PART | awk '{ print $5 }' | cut -d'%' -f1`

if [ $USE -gt $MAX ]; then

echo "Percent used: $USE" | mail -s "Running out of disk space" $EMAIL

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Skype Id :- cloud.network1

E-Mail Id :- itcloudnet@gmail.com

####----------------------------------------------------------------------------------------####

Thanking You

Hope U Like it........

Monday, March 2, 2015

Complete Installation Guide for Android Emulator SDK/ADT Manager With Eclipse on Ubuntu 14.10,15.04

Cloud Network March 02, 2015

Ubuntu

Hello Everyone,

In this tutorial

Let Us Install Android Emulator SDK Manager with Eclipse on Ubuntu 14.04, 14.10 or 15.04 - 64bit

You Can also Install in Debian 7.5, Linux Mint 17, Xubuntu & Lubuntu

Requirement
Internet speed should be good 64 bit only support

Empty space should be 5gb above for both installation and configuration

Installing Linux Distribution
Step1 :- sudo apt-get install ia32-libs
Step2 :- sudo apt-get install libgl1-mesa-dev

Watch the Video on Youtube.com/itcloudnet

For java installation

sudo apt-get Install openjdk-7-jdk
Or
sudo apt-get install openjre-7-jre

Step3 :- sudo gedit ~/.pam_environment or ~/.bashrc
PATH DEFAULT=${PATH}:/path/to/tools`
PATH DEFAULT=${PATH}:/path/to/platform-tools

Downloading Android SDK Manager
Step3 :- wget http://dl.google.com/android/android-sdk_r24.0.2-linux.tgz
Step4 :- tar -zxvf android-sdk_r24.0.2-linux.tgz
Step5 :- ./android

NOTE :- For Any Clarification Please Below

Comment,

Like and

Share us and help us to spread.

####--------------------------------------------------------------------------------------####

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Facebook :- http://facebook.com/itCloudNetwork/

Twitter :- http://twitter.com/itcloudnet

Pinterset :- http://pinterset.com/itcloudnet

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Google+ :- https://plus.google.com/u/0/107923552480070716949/posts