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Operating System . Linux Assignments

Factorial,Greatest Number, Palindrome AWK

April 4, 2011 by ProjectsGeek 2 Comments

 

Factorial,Greatest Number,Palindrome String  using AWK Programming


Write a Menu driven program using AWK Programming for

 

a) Find factorial of a number.

b) Find greatest of three numbers

c) Find a prime numbers.

d) Find whether a number is palindrome

e) Find whether a string is palindrome

 f) Exit.

Factorial,Greatest Number,Palindrome AWK Programming Code

 

 

BEGIN{  
   print"main menu" ;  
   print"1.factorial of number" ;  
   print"2.greatest of numbers" ;  
   print"3.prime number" ;  
   print"4.palindrome of number" ;  
   print"5.palindrome of string" ;  
   print"enter ur choice" ;  
   getline ch<"-" ;  
   print ch ;  
   if(ch==1)  
   {  
    print "enter the number" ;  
    getline tmp<"-" ;  
    c=1 ;  
    while(tmp != 0)  
    {  
     c=c*tmp ;  
     tmp-- ;  
     }  
    print c ;  
    }  
   if(ch==2)  
   {  
    print "enter first number" ;  
    getline a1<"-" ;  
    print "enter second number" ;  
    getline a2<"-" ;  
    print "enter third number" ;  
    getline a3<"-" ;  
    if(a1>a2 && a1>a3)  
    print "first number is greater " ;  
    if(a2>a1 && a2>a3)  
    print "second number is greater " ;  
    if(a3>a1 && a3>a2)  
    print "third number is greater " ;  
    }  
    if(ch==3)  
    {  
     print "enter the number" ;  
     getline tmp<"-" ;  
     if(tmp==1)  
     print "not prime number" ;  
     i=tmp-1 ;  
     while(i > 1)  
     {  
      a=tmp%i ;  
      i--;  
      if(a == 0)  
      {  
       print "not prime number" ;  
       break ;      
      }  
     }  
      if(i==1)  
      print "prime number " ;  
     }  
     if(ch==4)  
     {  
      print "enter the number" ;  
      getline tmp<"-" ;  
      sd=0 ;  
      rev=" " ;  
      on=tmp ;  
      n=length(tmp)-1 ;  
      while(tmp != 0)  
      {  
        sd=tmp % 10 ;  
        tmp=tmp / 10;  
        rev=rev+(sd*(10^n)) ;  
        n-- ;  
       }  
      print rev ;  
      if(on == rev)  
       print "palindrome" ;  
      else  
      print "not palindrome" ;  
     }  
     if(ch==5)  
     {  
      print "enter the number" ;  
      getline tmp<"-" ;  
      p = ""  
      for(i=length(tmp); i > 0; i--) { p = p substr(tmp, i, 1) }  
      print p  
      if(p == tmp )  
      print "palindrome " ;  
      else  
      print "not palindrome" ;      
     }  
 }

 

Other Projects to Try:

  1. Factorial,Greatest Number,String Palindrome Shell code
  2. Student Database using AWK Programming
  3. string operations such as Copy, Length, Reversing, Palindrome, Concatenation
  4. Implement using Socket Programming (TCP/UDP) in Java
  5. Factorial of a number using recursion in C

Filed Under: Operating System . Linux Assignments

Student Database using AWK Programming

April 4, 2011 by ProjectsGeek 5 Comments

Student Database using AWK Programming 

 

Write a program to handle student data base with options given below

a) Create data base.

b) View Data Base.

c) Insert a record.

d) Delete a record.

e) Modify a record.

f) Result of a particular student.

g) Exit.

Student Database using AWK

 clear  
 echo "1. create database "  
 echo "2. view database "  
 echo "3. insert a record "  
 echo "4. delete record "  
 echo "5. modify a record "  
 echo "6. result of particular student "  
 echo "7. exit"  
 echo " enter ur choice "  
 read d  
 case $d in  
 1)  
    echo " enter rollnumber of student "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn :$nm: $sk: $eg: $hn "  
   awk 'BEGIN{ print "'"$record"'">"stud" }'   
   ;;  
 2) awk 'BEGIN{print "rollno name smarks emarks hmarks"}{print $0}' stud;;  
 3)   
   echo " enter rollnumber of student "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn: $nm: $sk: $eg: $hn "  
   awk 'BEGIN { print "'"$record"'">>"stud" }'  
    ;;  
 4) echo " enter roll number "  
   read rn  
   awk 'BEGIN{FS=":"}$1=='$rn' {print }' stud  
   echo "RECORD FOUND "  
   awk 'BEGIN{FS=":"}$1!='$rn'{print >"temp"}' stud  
   cp temp stud  
   ;;  
 5) echo " enter roll number "  
   read rn1  
   awk 'BEGIN{FS=":"}$1=='$rn1' {print }' stud  
   echo " enter roll number "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn: $nm: $sk: $eg: $hn "  
   var=`awk 'BEGIN{FS=":"}$1=='$rn1' {print NR}' stud `  
   echo $var  
   awk 'BEGIN{FS=":"}NR<'$var'{print >"temp"}' stud  
   echo $record>>temp  
   var3=`awk 'END{print NR}' stud `  
   var2=`expr $var3 - $var `  
   awk 'BEGIN{FS=":"}NR>'$var2' && NR<'var3' {print >>"temp"}' stud  
   cp temp stud  
 ;;  
 6) echo " enter roll number "  
   read rn  
   echo "printing result "  
   awk 'BEGIN{FS=":"}$1=='$rn' {print }' stud  
   echo "RECORD FOUND "  
 ;;  
 7) ;;  
 * ) echo "enter right choice"  
 esac

 

Other Projects to Try:

  1. Database connectivity in Java with MYSQL
  2. Student Database using Shell Programming OS problem
  3. Factorial,Greatest Number, Palindrome AWK
  4. Student Database in C Language
  5. Student Database using Virtual functions in C++

Filed Under: Operating System . Linux Assignments

Factorial,Greatest Number,String Palindrome Shell code

April 4, 2011 by ProjectsGeek Leave a Comment

Factorial,Greatest Number,String Palindrome using Shell Programming

 

Menu driven program for Factorial,Greatest Number,String Palindrome

 

a) Find factorial of a no.

b) Find greatest of three numbers

c) Find a prime no

d) Find whether a number is palindrome

e) Find whether a string is palindrome

 Factorial,Greatest Number,String Palindrome Shell Programming Code

 

palins()  
 {  
   echo “ Enter a String to check for Palindrome “  
   read str  
   i=1  
   y=`echo $str | wc -c`   
   y=`expr $y - 1`  
   z=$y  
   echo “The Length of String $y”  
   while [ $y -ne 0 ]  
   do  
   z=`echo $str | cut -c $i`  
   w=`echo $str | cut -c $y`  
   if [ "$z" != "$w" ]  
   then  
   echo “ The Given String $str is not Palindrome ”  
   y=0  
   else  
   i=`expr $i + 1`  
   y=`expr $y - 1`  
   fi  
   done  
   if [ "$z" = "$w" ]  
   then  
    echo “The Given String $str is a Palindrome”  
   fi  
 }  
 palinn()  
 {  
  echo -n "Enter number : "  
  read n  
  sd=0  
  rev=""  
  on=$n  
  while [ $n -gt 0 ]  
  do  
   sd=$(( $n % 10 )) # get Remainder  
   n=$(( $n / 10 )) # get next digit  
   rev=$( echo ${rev}${sd} )  
  done  
  if [ $on -eq $rev ];  
  then  
   echo "Number is palindrome"  
  else  
   echo "Number is NOT palindrome"  
  fi  
 }  
 great()  
 { echo "enter first number"  
  read a1  
  echo "enter first number"  
  read a2  
  echo "enter first number"  
  read a3  
  if [ $a1 -gt $a2 ] && [ $a1 -gt $a3 ]; then  
  echo "first number $a1 is greatest"  
  elif [ $a2 -gt $a1 ] && [ $a2 -gt $a3 ]; then  
  echo "second number $a2 is greatest"  
  elif [ $a3 -gt $a1 ] && [ $a3 -gt $a2 ]; then  
  echo "third number $a3 is greatest"  
  fi  
 }  
 fact()  
 {  
  echo "enter the number to find the factorial"  
  read b  
  c=1  
  while [ "$b" -gt 0 ]; do  
  c=$(($c * $b))  
  b=$(($b-1))  
  done  
  echo "factorial is $c "  
 }  
 clear  
 echo "1. factorial "  
 echo "2. greatest number "  
 echo "3. palindrome "  
 echo "4. palindrome string "  
 echo "5. exit"  
 echo "6. enter ur choice "  
 read d  
 case "$d" in  
 1) echo " factorial "  
   fact;;  
 2) echo "greatest"  
   great;;  
 3) echo "palindrome"  
    palinn ;;  
 4) palins ;;  
 5) ;;  
 * ) echo "enter right choice"  
 esac

 

 

Other Projects to Try:

  1. Factorial,Greatest Number, Palindrome AWK
  2. string operations such as Copy, Length, Reversing, Palindrome, Concatenation
  3. Student Database using Shell Programming OS problem
  4. String Operations with Pointers
  5. Student Database using AWK Programming

Filed Under: Operating System . Linux Assignments

Student Database using Shell Programming OS problem

April 4, 2011 by ProjectsGeek 2 Comments

Student Database using Shell Programming

 

Write a program to handle student data base with options given below :

a) Create data base.

b) View Data Base.

c) Insert a record.

d) Delete a record.

e) Modify a record.

f) Result of a particular student.

g) Exit.

Student Database using Shell Programming Code

 

 clear  
 echo "1. create database "  
 echo "2. view database "  
 echo "3. insert a record "  
 echo "4. delete record "  
 echo "5. modify a record "  
 echo "6. result of particular student "  
 echo "7. exit"  
 echo " enter ur choice "  
 read d  
 case $d in  
 1)  
    echo " enter rollnumber of student "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn $nm $sk $eg $hn "  
   echo $record>stud   
   ;;  
 2) echo " showing database of student"  
   cat stud ;;  
 3)   
   echo " enter rollnumber of student "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn $nm $sk $eg $hn "  
   echo $record>>stud  
    ;;  
 4) echo " enter roll number "  
   read rn  
   grep ^$rn stud  
   if [ $? -ne 0 ]; then  
   echo "record for roll number does not exist "  
   else  
   grep -v $rn stud>>tmp  
   cp tmp stud  
   echo "deletion complete "  
   fi  
   ;;  
 5) echo " enter roll number "  
   read rn1  
   grep ^$rn stud  
   if [ $? -ne 0 ]; then  
   echo "record for roll number does not exist "  
   else  
   echo " enter roll number "  
   read rn  
   echo " enter name of student "  
   read nm  
   echo " enter marks sanskrit "  
   read sk  
   echo " enter marks english "  
   read eg  
   echo " enter marks hindi "  
   read hn  
   record="$rn $nm $sk $eg $hn "  
   var=`grep -n ^$rn1 stud | cut -c 1`  
   echo $var  
   var1=`expr $var - 1`  
   head -$var1 stud>temp  
   echo $record>>temp  
   var3=`wc -l < stud`  
   var2=`expr $var3 - $var `  
   tail -$var2 stud>>temp  
   cp temp stud  
    fi  
 ;;  
 6) echo " enter roll number "  
   read rn  
   echo "printing result "  
   grep ^$rn stud  
 ;;  
 7) ;;  
 * ) echo "enter right choice"  
 esac

 

Other Projects to Try:

  1. Student Database using AWK Programming
  2. Simple Student Database using C Language
  3. Factorial,Greatest Number,String Palindrome Shell code
  4. Student Database using Virtual functions in C++
  5. Student Database in C Language

Filed Under: Operating System . Linux Assignments

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