[Solved] How to parse and arrange lines of a csv file based on matching word in C?

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I could write the code to get the required output. Below is the code:

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>
#include<fcntl.h>
#include<string.h>

int main(int argc, char ** argv) 
{
    struct filedata {
        char nation[8];
        char content[50];
    };

    char line[100];
    char *inputFile = argv[1];
    FILE *input_csv_file;
    int iter = 0, c;

    char * tok;
    int count = 0;
    char ch;
    char country[] = "country";
    char header_line[50];

    input_csv_file = fopen(inputFile, "rt");

    //count line numbers of the input csv
    for(ch = getc(input_csv_file); ch!= EOF; ch=getc(input_csv_file))
        if(ch == '\n')
            count = count + 1;


    fclose(input_csv_file);


    count =  count -1;

    struct filedata * record[count];
    input_csv_file = fopen(inputFile, "rt");

    if(input_csv_file == 0) 
    {
        printf("Can not open input file\n");
    } else 
    {
        while(fgets(line, sizeof line, input_csv_file) != NULL) 
        {
            //printf("-- line = %s\n", line);
            int s_line = sizeof line;
            char dup_line[s_line];
            strcpy(dup_line, line);

            int h = 0;
            int s_token;

            tok = strtok(line, ",");

            while(tok != NULL) 
            {
                h++;
                if(h == 3)
                {
                    s_token = sizeof tok;
                    break;
                }
                tok = strtok(NULL, ",");
            }


            // skipping the line having column headers
            if(compare_col(tok, country) == 0) {
                strcpy(header_line, dup_line);
                continue;
            }

            iter++;
            c = iter - 1;

            record[c] = (struct filedata*)malloc(sizeof(struct filedata));
            strcpy(record[c]->nation, tok);
            strcpy(record[c]->content, dup_line);
        } //while

        struct filedata * temp;

        FILE * fptr;
        fptr = fopen("nation_csv.txt", "w");
        if(fptr == NULL)
        {
            printf("Error in opening the file to write\n");
            exit(1);
        }

        // sorting the arr of struct nation wise
        for(iter=1; iter < count; iter++)
            for(c =0 ; c < count -1; c++) {
                if(strcmp(record[c]->nation, record[c+1]->nation) > 0) {
                    temp = record[c];
                    record[c] = record[c+1];
                    record[c+1] = temp;
                }
            } 

        for(iter=0; iter < count; ++iter) 
        {
            if(iter == 0) {
            fprintf(fptr, "%s", header_line);
                continue;
            }

            fprintf(fptr, "%s", record[iter]->content);
        }
    fclose(fptr);
    }
    fclose(input_csv_file);
}

int compare_col(char a[], char b[] )
{
    int c = 0;
    while(a[c] == b[c]) {
        if(a[c] == '\0' || b[c] == '\0')
            break;
        c++;

    }

    if(a[c] == '\0' && b[c] == '\0')
        return 0;
    else 
        return -1;
}

Thanks for all your inputs. Any further inputs to make it better are much appreciated.

Thanks

solved How to parse and arrange lines of a csv file based on matching word in C?