UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Learn C Language from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

C Language > Learn C Language > How do I search a string in a file in C programming?
✕

Search in

How do I search a string in a file in C programming?

Asked by Last Modified  

3 Answers

Learn C Language

Follow 1
Answer

Please enter your answer

Learning Education

#include stdio.h #include string.h #include stdlib.h #ifdef DEBUG #define INITIAL_ALLOC 2 #else #define INITIAL_ALLOC 512 #endif char * read_line(FILE *fin) { char *buffer; char *tmp; int read_chars = 0; int bufsize = INITIAL_ALLOC; char *line = malloc(bufsize); ...
read more
#include stdio.h #include string.h #include stdlib.h #ifdef DEBUG #define INITIAL_ALLOC 2 #else #define INITIAL_ALLOC 512 #endif char * read_line(FILE *fin) { char *buffer; char *tmp; int read_chars = 0; int bufsize = INITIAL_ALLOC; char *line = malloc(bufsize); if ( !line ) { return NULL; } buffer = line; while ( fgets(buffer, bufsize - read_chars, fin) ) { read_chars = strlen(line); if ( line[read_chars - 1] == '\n' ) { line[read_chars - 1] = '\0'; return line; } else { bufsize = 2 * bufsize; tmp = realloc(line, bufsize); if ( tmp ) { line = tmp; buffer = line + read_chars; } else { free(line); return NULL; } } } return NULL; } int main(int argc, char *argv[]) { FILE *fin; char *line; if ( argc != 3 ) { return EXIT_FAILURE; } fin = fopen(argv[1], "r"); if ( fin ) { while ( line = read_line(fin) ) { if ( strstr(line, argv[2]) ){ fprintf(stdout, "%s\n", line); } free(line); } } fclose(fin); return 0; } read less
Comments
Dislike Bookmark

Engineer

you have to declare the syntax and then type char filename=name.txt,line =2000,search string =number
Comments
Dislike Bookmark

Advance Excel And VBA Training

Please see the attached Images
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

What is meant by high-order and low-order bytes?
Lower order and higher-order bytes are the terms used while computing calculations in a programming language. Usually, numbers are written from left to right. The left is the most significant bit, and...
Vishal
0 0
9
When is a "switch" statement better than multiple "if" statements?
switch statement is generally best to use when you have more than two conditional expressions based on a single variable of numeric type. For instance, rather than the code if (x == 1) printf(“x...
Shalu
How do I get C help in Ubuntu?
Use command line tool 'man'. for example 'man printf' will give you details regarding printf function C
Ashmita
0 0
5
Is it necessary for a programmer to start his career by learning the C language first?
Not necessarily to learn C language, but if you learn C langauge it is easy to grasp other proramming languages.
Shilpa
Can you define which header file to include at compile time?
Yes we can do it by using conditional comilation
Thileshwari
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

INTRODUCTION TO PROGRAMMING LANGUAGES
Language is a medium for communication. If we want to perform anything with another person, we can know the human language as a human being. Similarly, if we want to perform anything with a computer, we...

Duggineni

0 0
0
All About Programming And A Good Programmer.
Hi, This is my first lesson for you guys. Hope you enjoy reading it. In recent community questions, I found many people wanted to be good programmers, or wanted to have good hands on certain language,...

Prateek

0 0
0
Everything about printf in C language
What is printf and from where it comes from in C code.? You must have used printf so many times in your Car programs but do you really know everything about printf? Let's see. What is the full form...

Ganesh

0 0
0
Programing Languages Learning Tricks
You want to learn that new language or library or framework as soon as possible, right? That’s understandable. Fortunately, there are a handful of tips that can help you to better retain all of that...
H

Harshal

0 0
0
C Program Sample Application
//Standard Library Functions(Header Files used) #include<stdio.h> #include <conio.h> //Main method int main() { // function for clearing screen clrscr(); // function to print the output...

Salim ahmed

0 0
0

Recommended Articles

Brilliant Academy, a reputed B. Tech Tuition...

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

Lasya Infotech: An educational Training...

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Top 5 Skills Every Software Developer Must have

Software Development has been one of the most popular career trends since years. The reason behind this is the fact that software are being used almost everywhere today.  In all of our lives, from the morning’s alarm clock to the coffee maker, car, mobile phone, computer, ATM and in almost everything we use in our daily...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Noida
C Language Classes in Gurgaon
C Language Classes in Ghaziabad

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for C Language Classes?

The best tutors for C Language Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn C Language with the Best Tutors

The best Tutors for C Language Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2026 All Rights Reserved