Implement a Simple Shell Command Parser

Code

#include <stdio.h>
#include <ctype.h>

void parse_shell_input(char *line) {
    while(*line != '\0'){
        if(*line == ' ')
            if(*(line - 1) != ' ')
                putchar('\n');
            else;
        else
            putchar(*line);
        line++;
    }
}

int main() {
    char line[101];
    fgets(line, sizeof(line), stdin);

    parse_shell_input(line);
    return 0;
}

Solving Approach