Question

1. Write a single line shell command to run the C program above and remove all words "a" from the file news.txt
2. Please write a C program remove Word.c to obtain the input from standard input and remove all word "the".
3. Please write a C program countSentence.c to obtain the input from standard input and count the number of sentences. Assume a sentence should end with ., .",?or!
4. Please write a C program listFreq.c to list the frequency of each word from the standard inpu

Answer 1

Please find my implementation for Q3.

Please repost others in separate post.

#include<stdio.h>
#include<string.h>
int main()
{
char paragraph[10000];
int number_of_characters,number_of_sentence=0,i;

printf("Enter paragraph:\n");
fgets(paragraph, 10000, stdin);

// get number of characters
number_of_characters= strlen(paragraph);

for (i=0; i<number_of_characters; i++)
{
if (paragraph[i]=='.' ||(paragraph[i]=='.' && paragraph[i+1]=='"') || paragraph[i]=='?' || paragraph[i]=='!')
{
number_of_sentence++;
}
}
printf("Total number of sentences in the paragraph is: %d", number_of_sentence);

return 0;
}

firstweek → firstweek firstweek → firstweek gcc countSentence.c firstweek./a.out Enter paragraph: Please write a C program countSentence.cto obtain the input from standard input and count the number of sentences. Assume a sentence should end with ., .", ?o r !.- Please write a C program listFreq.cto list the frequency of each word from the standard input Total number of sentences in the paragraph is: 8 firstweek