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Modify task1.c so it will read from standard input, convert lowercase letters to uppercase letters, and write the output to standard output. Modify this file to convert all lowercase to uppercases letters. Hint: look at the integer value of letters in the ascii table https://www.asciichart.com/ Then you can use basic math. You are not allowed to use toupper() function. */ #include #include #include int main(int argc, char *argv[]) {         char c;         while(1){                 int r = read(0,&c,1);                 if(r==0)                         break;                 write(1,&c, 1);         }         return 0; }

Modify task1.c so it will read from standard input, convert lowercase letters to uppercase letters, and write the output to standard output. Modify this file to convert all lowercase to uppercases letters. Hint: look at the integer value of letters in the ascii table https://www.asciichart.com/ Then you can use basic math. You are not allowed to use toupper() function. */ #include #include #include int main(int argc, char *argv[]) {         char c;         while(1){                 int r = read(0,&c,1);                 if(r==0)                         break;                 write(1,&c, 1);         }         return 0; }

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Modify task1.c so it will read from standard input, convert lowercase letters to uppercase letters, and write the output to standard output.

Modify this file to convert all lowercase to uppercases letters.
Hint: look at the integer value of letters in the ascii table
https://www.asciichart.com/
Then you can use basic math.
You are not allowed to use toupper() function.
*/

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

int main(int argc, char *argv[])
{
        char c;
        while(1){
                int r = read(0,&c,1);
                if(r==0)
                        break;
                write(1,&c, 1);
        }
        return 0;
}

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