skymansandy

echo "Enter the name of first file: "
read file1
echo "Enter the name of second file: "
read file2
fp1=`ls -l $file1|cut -c 2-10`
fp2=`ls -l $file2|cut -c 2-10`

if [ $fp1 = $fp2 ]
then
echo "Files $file1 and $file2 have same permission $fp1"

skymansandy

#include<stdio.h> 
#include<stdlib.h> 
#include<unistd.h> 

void main()
{
	char command[20];
	int ch,pid=fork();

	if(pid==0)

skymansandy

echo "Non Recursive shell Script"
echo "The total number of arguments specified:$#"
echo "The given $# arguments are :$*"
temp1=$#
echo "The arguments in reverse order:"
while [ $temp1 -ge 1 ] 
do
eval echo \$$temp1
temp1=`expr $temp1 - 1`
done 

skymansandy

%{
#include<stdio.h>
#include<stdlib.h>
%}
%token A B
%%
str: s '\n'    {  return 0;}
s : x B  ;
x : A A A A A A A A A A T  ;
T: T A

skymansandy

%{
/* 6.l Yacc program to recognize the grammar AnB where n ≥ 10 */
#include "y.tab.h"
%}
%%
a 	return A;
b 	return B;
. 	return yytext[0];
\n 	return yytext[0];
%%

skymansandy

%{
/* 6.l Yacc program to recognize the grammar AnB where n ≥ 10 */
#include "y.tab.h"
%}
%%
a 	return A;
b 	return B;
. 	return yytext[0];
\n 	return yytext[0];
%%

skymansandy

%{
/* 5b.l Program for the grammar  AnBn where n≥0 */
#include "y.tab.h"
%}
%%
a 		{return A;}
b 		{return B;}
. 		{return yytext[0];}
\n 		{return yytext[0];}
%%

skymansandy

%{
#include<stdio.h>
#include<stdlib.h>
/* 5b.y Program for the grammar   AnBn where n≥0 */
%}
%token A B
%%
str: s '\n' {  return 0;}
s : A s B   ;
 |  ;

skymansandy

%{
#include <stdio.h>
#include<stdlib.h>
%}
%token  NUM 
%left   '+' '-'
%left   '*' '/'
%%
expr : e 	{ printf(" Result : %d\n",$1); return 0;};
e : e '+' e 	{$$=$1+$3;}

skymansandy

%{
#include<stdlib.h>
#include "y.tab.h"
extern int yylval;
%}
%%
[0-9]+  	{ yylval=atoi(yytext);  return NUM;  }
[\t] 		;
\n 		return 0;
. 		return yytext[0];