C Program to Capitalize First Letter of Each Word in String

This C Program replaces first letter of every word with caps.

Here is source code of the C Program to replace first letter of every word with caps. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
```

 * C Program to replace first letter of every word with caps

```
 */
```
```
#include <stdio.h>
```
```
#include <stdlib.h>
```
```
 
```
```
void main(int argc, char *argv[])
```
```
{
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```
    FILE *fp1;
```
```
    int return_val;
```
```
 
```

    if ((fp1 = fopen(argv[1],"r+")) =  = NULL)

```
    {
```
```
        printf("file cant be opened");
```
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        exit(0);
```
```
    }
```
```
    return_val = init_cap_file(fp1);
```
```
    if (return_val == 1)
```
```
    {
```
```
        printf("\nsuccess");
```
```
    }
```
```
    else
```
```
    {
```
```
        printf("\n failure");
```
```
    }
```
```
}
```
```
 
```
```
int init_cap_file(FILE *fp1)
```
```
{
```
```
    char ch;
```
```
 
```
```
    ch = fgetc(fp1);
```
```
    if (ch >= 97 && ch <= 122)
```
```
    {
```
```
        fseek(fp1, -1L, 1);
```
```
        fputc(ch - 32, fp1);
```
```
    }
```
```
    while (ch != EOF)
```
```
    {
```
```
        if (ch = = ' '|| ch == '\n')
```
```
        {
```
```
            ch = fgetc(fp1);
```
```
            if (ch >= 97 && ch <= 122)
```
```
            {
```
```
                fseek(fp1, -1L, 1);
```
```
                fputc(ch - 32, fp1);
```
```
            }
```
```
        }
```
```
        else
```
```
            ch = fgetc(fp1);
```
```
    }
```
```
    return 1;
```
```
}
```

$ vi file5test
$ cat file5test
chandana ravella
chanikya ravella
sree lakshmi ravella
sree ramulu ravella
$ cc file5.c
$ a.out file5test
 
success$ cat file5test
Chandana Ravella
Chanikya Ravella
Sree Lakshmi Ravella
Sree Ramulu Ravella

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