Shell Program To Extract the Message from Shared Memory

#include<sys/types.h>

#include<sys/ipc.h>

#include<sys/msg.h>

#include<sys/shm.h>

#include<unistd.h>

#include<stdio.h>

#include<sys/stat.h>

#include<string.h>

main()

{

int shmid,i;

char *pa,a[1000];

shmid=shmget((key_t)1300,1024,0600|IPC_CREAT);

if(shmid==-1)

{printf("shmget failed");

return;

}

pa=(char*)shmat(shmid,0,0);

if(pa==(void *)-1)

{

printf("shmat failed");

return;

}

printf("The text recived is: \n");

puts(pa);

}

Output:

[user@localhost ~]$ cc emgsh.c

[user@localhost ~]$ ./a.out

The text recived is:

Message stored in shared memory

shared memory programs

[user@localhost ~]$ 

Shell Program for Read & Print the text using shared memory

#include<sys/types.h>

#include<sys/ipc.h>

#include<sys/msg.h>

#include<sys/shm.h>

#include<unistd.h>

#include<stdio.h>

#include<sys/stat.h>

#include<string.h>

main()

{

int shmid,i;

char *pa,a[1000];

shmid=shmget((key_t)1300,1024,0600|IPC_CREAT);

if(shmid==-1)

{printf("shmget failed");

return;

}

pa=(char*)shmat(shmid,0,0);

if(pa==(void *)-1)

{

printf("shmat failed");

return;

}

printf("Enter text&press$to terminate\n");

for(i=0;(a[i]=getchar())!='$';i++);

a[i]='\0';

strcpy(pa,a);

printf("The given text is placed into shared memory\n");

}

OutPut

[user@localhost ~]$ cc mgsh.c

[user@localhost ~]$ ./a.out

Enter text&press$to terminate

Message stored in shared memory

shared memory programs$

The given text is placed into shared memory

[user@localhost ~]$ 

SHELL SCRIPT TO COPY ONE FILE TO ANOTHER FILE

COPY ONE FILE TO ANOTHER FILE:

echo "copying one file to another"

if [ $# -eq 4 ]

then

   cp $3 $1

   cp $4 $2

 fi

OUTPUT:

[@localhost ~]$ cat f3

hai this is rajasekar

[@localhost ~]$ cat f4

i did my pg in nmc

[@localhost ~]$ sh copy.sh f1 f2 f3 f4

copying one file to another

[@localhost ~]$ cat f1

hai this is rajasekar

[@localhost ~]$ cat f2

i did my pg in nmc

SHELL SCRIPT TO REMOVE THE LINES IN A GIVEN PATTERN

REMOVE THE LINES IN A GIVEN PATTERN:

echo "Enter file name"

read file

echo "Enter pattern"

read pat

grep -v $pat $file

OUTPUT:

[@localhost ~]$ sh pattern.sh

Enter file name

raja

Enter pattern

did

HAI I AM RAJASEKAR

I DID MY STUDIES IN NMC

I COMPLEATED MY PG DEGREE IN MBA AND MCA

I AM ALWAYS BE A OVER-CONFIDENT PERSON

THEN ONLY LEADS TO VERY SUCCESSFULL MANNER

[@localhost ~]$ sh pattern.sh

Enter file name

raja

Enter pattern

COMPLEATED

HAI I AM RAJASEKAR

I DID MY STUDIES IN NMC

I AM ALWAYS BE A OVER-CONFIDENT PERSON

THEN ONLY LEADS TO VERY SUCCESSFULL MANNER

[@localhost ~]$ sh pattern.sh

Enter file name

raja

Enter pattern

I

THEN ONLY LEADS TO VERY SUCCESSFULL MANNER

SHELL SCRIPT TO GET NO OF SUBDIRECTORY IN CURRENT DIRECTORY

ALL SUBDIRECTORY IN CURRENT DIRECTORY:

echo "to display all sub directory"

for i in *

do

if [ -d $i ]

then

echo $i "is an directory"

fi

done

OUTPUT:

[@localhost ~]$ sh subdirt.sh

to display all sub directory

123 is an directory

324@86 is an directory

SHELL SCRIPT TO PAYBILL PREPARATION

PAYBILL PREPARATION:

 echo -e "\tPAYBILL CALCULATION"

echo -e "\t~~~~~~~~~~~~~~~~~~~~"

echo -e "\tenter the n value"

read n

echo -e "\tenter name id salary"

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

do

`read name id salary

echo -e "\tbefore calculation"

echo -e "\t***********************"

echo -e "\tname\t:$name\n\tid\t:$id\n\tsalary\t:$salary"

echo -e "\t***********************"

echo -e "\t calculation part"

if [ $salary -lt 10000 ]

then

lic=`expr $salary*0.05|bc`

echo -e "\n\tlic:\t"$lic

pf=`expr $salary*0.03|bc`

echo -e "\n\tpf:\t"$pf

ded=`expr $lic+$pf|bc`

echo -e "\n\tded:\t"$ded

hra=`expr $salary*0.03|bc`

echo -e "\n\thra:\t"$hra

da=`expr $salary*0.08|bc`

echo -e "\n\tda:\t"$da

add=`expr $hra+$da|bc`

echo -e "\n\tadd:\t"$add

gpay=`expr $salary-$ded|bc`

echo -e "\n\tgpay:\t"$gpay

npay=`expr $gpay+$add|bc`

echo -e "\n\tnpay:\t"$npay

echo -e "\n\tafter calculation"

echo -e "\n\t*********************"

echo -e "\n\tname\t:$name\n\tid\t:$id\n\tnetpay\t:$npay"

echo -e "\n\t***********************"

else

lic=`expr $salary*0.05|bc`

echo -e "\n\tlic:\t"$lic

pf=`expr $salary*0.03|bc`

echo -e "\n\tpf:\t"$pf

ded=`expr $lic+$pf|bc`

echo -e "\n\tded:\t"$ded

hra=`expr $salary*0.03|bc`

echo -e "\n\thra:\t"$hra

da=`expr $salary*0.08|bc`

echo -e "\n\tda:\t"$da

add=`expr $hra+$da|bc`

echo -e "\n\tadd:\t"$add

gpay=`expr $salary-$ded|bc`

echo -e "\n\tgpay:\t"$gpay

npay=`expr $gpay+$add|bc`

echo -e "\n\tnpay:\t"$npay

echo -e "\n\tafter calculation"

echo -e "\n\t*********************"

echo -e "\n\tname\t:$name\n\tid\t:$id\n\tnetpay\t:$npay"

echo -e "\n\t***********************"

fi

done

OUTPUT:

[@localhost ~]$ sh paybill.sh

        PAYBILL CALCULATION

        ~~~~~~~~~~~~~~~~~~~~

        enter the n value

2- INSERT --

        enter name id salary

rajasekar 324 100000

        before calculation

        ***********************

        name    :rajasekar

        id      :324

        salary  :100000

        ***********************

         calculation part

        lic:    5000.00

        pf:     3000.00

        ded:    8000.00

        hra:    3000.00

        da:     8000.00

        add:    11000.00

        gpay:   92000.00

        npay:   103000.00

        after calculation

        *********************

        name    :rajasekar

        id      :324

        netpay  :103000.00

        ***********************

SHELL SCRIPT TO COMPARE TWO FILE

COMPARE TWO FILE:

cmp $1 $2

if [ $? -eq 0 ]

then

echo "Both files are EQUAL"

else

echo "Both files are NOTEQUAL"

fi

OUTPUT:

[@localhost ~]$ ls

acceptlogin.sh  current.sh     file1.sh     mark.sh  pol        totaldir.sh

add.sh          dcurrent.sh    file1.txt    new1.c   pol.sh     tri.sh

a.out           eletricity.sh  file2.txt    new1.sh  raj        userlog

big.sh          fact           fileper      new.c    raja.c     userlog.sh

big.shwq        fact.sh        fileper.sh   op.sh    series.sh  x.txt

com.sh          fib.sh         firstlet.sh  per.sh   subdir.sh  y.txt

[@localhost ~]$ sh com.sh fib.sh fact.sh

fib.sh fact.sh differ: byte 1, line 1

Both files are NOTEQUAL

[@localhost ~]$

SHELL SCRIPT FOR FIBONACCI SERIES

FIBNOCIS SERIES:

echo "Enter choice="

read n

fib1=0

fib2=1

echo "The series are=$fib1 $fib2"

for ((i=0; $i<$n; i=`expr $i + 1|bc`))

do

fib3=`expr $fib1 + $fib2 |bc`

fib1=$fib2

fib2=$fib3

echo "$fib3"

done

OUTPUT:

 [@localhost ~]$ sh fib.sh

Enter choice=

10

The series are=0 1

1

2

3

5

8

13

21

34

55

89

[@localhost ~]$

SHELL SCRIPT TO FETCH FILES WHICH STARTS WITH ‘A’ IN THE CURRENT DIRECTORY

FILES WHICH STARTS WITH ‘A’ IN THE CURRENT DIRECTORY:

for i in *

do

  x=$(echo $i|cut -b 1)

  if [ $x = "a" ]

  then

    echo $i

  else

    continue

  fi

  done

OUTPUT:

[@localhost ~]$ sh firstlet.sh a

acceptlogin.sh

add.sh

a.out

SHELL SCRIPT FOR ELECTRICITY BILL PREPARATION

ELECTRICITY BILL PREPARATION:

echo "enter the pmr cmr"

read  pmr cmr

echo "PreviousMonthReading: $pmr"

echo  "CurrentMonthReading: $cmr"

unit=`echo $cmr - $pmr |bc`

echo " unit  :  $unit"

if [ $unit -ge 200 ]

then

amt=`echo $unit \* 2.00 | bc`

else

 if [ $unit -lt 200 -a $unit -ge 100 ]

then

amt=`echo $unit \* 1.50 | bc`

 else

   amt=`echo $unit \* .50 | bc`

fi

fi

echo " Amount  : $amt"

OUTPUT:

[@localhost ~]$ sh eletricity.sh

enter the pvr cvr

700 950

PreviousMonthReading: 700

CurrentMonthReading: 950

 unit  :  250

 Amount  : 500.00

[@localhost ~]$

SHELL SCRIPT TO ACCEPT USERNAME AS COMMAND LINE ARGUMENTS AND CHECK THE USER LOGIN IN OR NOT

ACCEPT USERNAME AS COMMAND LINE ARGUMENTS  AND CHECK    THE USER LOGIN IN OR NOT

 echo "To check the user login or not"

if [ $# -eq 1 ]

then

who > y.txt

c=`grep -n $1 y.txt | wc -l`

fi

if [ $c -gt 0 ]

then

echo "The user has login"

else

echo "The user has not login"

fi

OUTPUT:

 [@localhost ~]$ sh acceptlogin.sh 2k7ca320

To check the user login or not

The user has login

[@localhost ~]$ sh acceptlogin.sh 2k7ca337

To check the user login or not

The user has not login

[@localhost ~]$

SHELL SCRIPT TO CHECK HOW MANY TIMES THE SPECIFIC USER HAS LOGIN

CHECK HOW MANY TIMES THE SPECIFIC USER HAS LOGIN:

echo "To count the user login"

read username

who > x.txt

c=`grep $username x.txt | wc -l`

echo "The user has logged $c times"

OUTPUT:

 [@localhost ~]$ sh userlog.sh

To count the user login

27324

The user has logged 1 times

[@localhost ~]$ 

SHELL SCRIPT TO DISPLAY THE NO OF FILES IN THE CURRENT DIRECTORY

DISPLAY THE NO OF FILES IN THE CURRENT DIRECTORY:

echo "to count the file in the directory"

count=0

for i in *

do count=`expr $count + 1`

done

echo $count

OUTPUT:

[@localhost ~]$ sh totaldir.sh

to count the file in the directory

26

[@localhost ~]$

KENDO GRID HEADER SORTING IS NOT WORKING IN IE11 FIXED

Hi All,

Many of us struck with sorting by clicking of header in Kendo UI
Grid ON IE 11 is not working. 

Here is the solution,

 In the Declararion of kendo Grid we have line linke Below,

.HtmlAttributes(new { style = "position: relative; z-index: 11000" })

Please remove the highlighted style(i.e. z-index: )

Example:

.HtmlAttributes(new { style = "position: relative;" })

Now Check your grid by running the code...

KENDO GRID ROW SELECTION ON IE11 FIXED

Hi All,

Many of us struck with displaying hyper link in Kendo UI
Grid ON IE 11. 

Most of the times the hyperlink is not clickable,

Here is the solution,

 In the Declararion of kendo Grid we have line linke Below,

.HtmlAttributes(new { style = "position: relative; z-index: 11000" })

Please remove the highlighted style(i.e. z-index: )

Example:

.HtmlAttributes(new { style = "position: relative;" })

Now Check your grid by running the code...

SHELL SCRIPT PROGRAMS

• SHELL SCRIPT TO
• 
  FIND FACTORIAL
• 
  PRINT TRIANGLE
• 
  PRINT STUDENT MARK LIST
• 
  FOR OPERATORS
• 
  N-TH TRIANGLE
• 
  FIND BIGGEST OF THREE NUMBERS
• 
  FIND POLYNDROME

• CHECK FILE HAS ALL PERMISSION

• DISPLAY THE NO OF FILES IN THE CURRENT DIRECTORY

• ACCEPT USERNAME AS COMMAND LINE ARGUMENTS AND CHECK THE USER LOGIN IN OR NOT

• ELECTRICITY BILL PREPARATION

• FETCH FILES WHICH STARTS WITH ‘A’ IN THE CURRENT DIRECTORY

• FIBONACCI SERIES

• COMPARE TWO FILE

• PAYBILL PREPARATION

• GET NO OF SUBDIRECTORY IN CURRENT DIRECTORY

• REMOVE THE LINES IN A GIVEN PATTERN

• COPY ONE FILE TO ANOTHER FILE

• SHARED MEMORY

• Read & Print the Text using Shared Memory

• Extract the Message from Shared Memory

• Length of the string using Shared Memory

• Length of the string using Shared Memory-II

• Mark Sheet Preparation Using Shared Memory –I

• Mark Sheet Preparation Using Shared Memory –II

• Storing Lower case Message in Shared Memory-I

• Extract text From Shared Memory & Print it in Uppercase

SHELL SCRIPT TO CHECK IF THE FILE HAS ALL PERMISSION

CHECK IF THE FILE HAS ALL PERMISSION:

  

echo "checking file permission"

read fn

if [ -r $fn -a -w $fn -a -x $fn ]

then

echo "The file has all permission"

else

echo "The file has not all permission"

fi

OUTPUT:

 

  [localhost ~]$ sh fileper.sh

checking file permission

pol.sh

The file has not all permission

[localhost ~]$ chmod 777 pol.sh

[localhost ~]$ sh fileper.sh

checking file permission

pol.sh

The file has all permission

[localhost ~]$

SHELL SCRIPT TO FIND POLYNDROME

Polyndrome Or Not:

count=`echo $1 | wc -c`

count=`echo $count - 1|bc`

echo "length of the given string is:"$count

while [ $count -gt 0 ]

do

rev1=`echo $1 | cut -b $count`

rev2=$rev2$rev1

count=`expr $count - 1`

done

if [ $rev2 = $1 ]

then

echo "string is palindrome"

else

echo "string is not palindrome"

fi

OUTPUT:

 [localhost ~]$ sh pol.sh madam

Length of The Given String is:5

String is Palindrome

[localhost ~]$ sh pol.sh sir

Length of The Given String is:3

String is Not Palindrome

[localhost ~]$ sh pol.sh malayalam

Length of The Given String is:9

String is Palindrome

[localhost ~]$

SHELL SCRIPT TO FIND BIGGEST OF THREE NUMBERS

BIGGEST OF THREE NUMBERS:

if [ $# -eq 3 ]

then

echo "All the no.'s are entered"

if [ $1 -gt $2 -a $1 -gt $3 ]

then

echo "The First Number is Greater " $1

else

if [ $2 -gt $3 ]

then

echo "The 2nd Number is Greater " $2

else

echo "The 3rd Number is Greater " $3

fi

fi

else

echo "Enter three numbers Again"

fi

OUTPUT:

[localhost ~]$ sh big.sh 24  89 -22

All the no.'s are entered

The 2nd Number is Greater  89

[localhost ~]$

SHELL SCRIPT TO PRINT N TRIANGLE

TRIANGLE:

echo "Triangle"

for((i=1;i<=5;i++))

do

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

do

echo -n $i

done

echo -e "\n"

done

OUTPUT:

Triangle

1

22

333

4444

55555

[2k7ca324@localhost ~]$

SHELL SCRIPT FOR OPERATORS

Operator

echo "Enter the Operator"

read a

echo "Name of Operator is: "

case $a in

+) echo "Addition"

   ;;

-) echo "Subtraction"

   ;;

\*) echo "Multiplication"

   ;;

/) echo "Division"

   ;;

*) echo "Not an Operator"

   ;;

esac

OUTPUT:

enter the operator

+

name of operator is:

addition

[2k7ca324@localhost ~]$ sh op.sh

enter the operator

-

name of operator is:

subtraction

[2k7ca324@localhost ~]$ sh op.sh

enter the operator

*

name of operator is:

multiplication

[2k7ca324@localhost ~]$ sh op.sh

enter the operator

/

name of operator is:

division

[2k7ca324@localhost ~]$ sh op.sh

enter the operator

%

name of operator is:

not an operator

SHELL SCRIPT TO PRINT STUDENT MARK LIST

STUDENT MARK LIST:

echo "Enter the no. of Students"

read n

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

do

 echo "Enter Name,Mark1 and Mark2"

 read name

 read mark1

 read mark2

 tot=`echo $mark1+$mark2|bc`

 if [ $mark1 -ge 40 -a $mark2 -ge 40 ]

 then

 res="Pass"

 else

 res="Fail"

 fi

avg=`echo $tot/2|bc`

echo "NAME"  $name

echo "MARK1" $mark1

echo "MARK2" $mark2

echo "TOTAL" $tot

echo "Average"  $avg

echo "Result" $res

done

OUTPUT:

enter the no. of students

2

enter name,mark1 and mark2

geetharani

87

56

name geetharani

mark1 87

mark2 56

total 143

average 71

result pass

enter name,mark1 and mark2

ranjani

78

98

name ranjani

mark1 78

mark2 98

total 176

average 88

result pass

SHELL SCRIPT TO PRINT TRIANGLE

TRIANGLE:

clear

#geNerate the pyramid

echo "the series is"

for((i=5;i>=1;i--))

do

for((j=5;j>=i;j--))

do

echo -n $j " "

done

echo  -e

done

OUTPUT:

the series is

5

5  4

5  4  3

5  4  3  2

5  4  3  2  1

SHELL SCRIPT TO FIND FACTORIAL

FACTORIAL

clear

#factorial of n numbers

echo "enter the number"

read num

fact=1

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

do

fact=`expr $fact \* $i`

done

echo "the factorial of $num is $fact"

OUTPUT:

enter the number

5

the factorial of 5 is 120

[2k7ca324@localhost ~]$