C Program to Count the Number of Lines in Text File

This C Program displays the number of lines in a text file.

Here is source code of the C Program to find the number of lines in a text file. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

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/*
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 * C Program to Find the Number of Lines in a Text File

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 */
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#include <stdio.h>
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int main()
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{
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    FILE *fileptr;
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    int count_lines = 0;
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    char filechar[40], chr;
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    printf("Enter file name: ");
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    scanf("%s", filechar);
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    fileptr = fopen(filechar, "r");
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   //extract character from file and store in chr

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    chr = getc(fileptr);
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    while (chr != EOF)
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    {
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        //Count whenever new line is encountered

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        if (chr == 'n')
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        {
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            count_lines = count_lines + 1;

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        }
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        //take next character from file.

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        chr = getc(fileptr);
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    }
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    fclose(fileptr); //close file.
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    printf("There are %d lines in %s  in a file\n", count_lines, filechar);

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    return 0;
```
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}
```

$ cc pgm49.c
$ a.out
Enter file name: pgm2.c
There are 43 lines in pgm2.c  in a file

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