UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories 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

Is c language easy to learn?
The ease of learning C language depends on an individual's prior programming experience and their familiarity with concepts like memory management. For beginners with no programming background, C might...
Vikash
0 0
6
How do I become good in competitive programming in a year if I have just started learning C language?
The best topics to learn would be Data structures and also the analysis of algorithms..(THESE ARE BASICS BUT IF U LEARN THEM PROPERLY!!! CODING WOULD BE A PIECE OF CAKE FOR U....)
Anmol
0 0
9
Who is the inventor of C programming?
Dennis Ritchie in the year of 1970 created C Programming language. He is a computer czar also helped to develop the Unix operating system.He died in the year of 2011 on Wednesday at his home in Berkeley Heights, New Jersey
Shreya
0 0
7
Can we have if inside else-if or else in C programming language?
Yes it is possible to do so. The if... else if..... else statements support one other inside themselves... so...
Kirthi
What is C language?
it is a computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations
Uday

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

Ask a Question

Related Lessons

Compiler vs Interpreter
Compiler Interpreter Convert all the code into binary format and execute. Convert one statement at a time and execute, then Convert next statement and execute. After conversion, source...

Umasankar Natarajan

0 0
0
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 Srinivasa Rao

0 0
0
Datatypes in C Language
Data types in C Language Data types specify how we enter data into our programs and what type of data we enter. C language has some predefined set of data types to handle various kinds of data that...

Venkateswararao S.

0 0
0
C-Program Swapping Contents Of Variables Using Function [Call By Reference Method]
//Header Files #include#include // User defined functions swap with 2 pointer variables passed as an argument list void swap(int*i,int*j){ // Local variable temp int temp; // swapping contents using...

Salim Ahmed Ansari

0 0
0
How do i get best Campus / Off Campus Placement?
Companies are looking for Skilled Freshers. So build your technical skills while doing MCA / BTech / BCA / BSc (IT or CS) into below areas- 1. Strong your programming & debugging skills ...

Amit K.

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 Gurgaon
C Language Classes in Noida
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 © 2010-2025 All Rights Reserved