Implement a Simple Shell Command Parser

Code

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

void parse_shell_input(char *line) {
    char token[10][20];
    int pos = 0, field = 0;
    for(int i=0;*(line+i)!='\0';i++){

        if(*(line+i)!=' '){
            if(pos<19){
                token[field][pos++] = *(line+i); 
            }
        }
        else{

            if(pos>0){
                token[field][pos] = '\0';
                field++;
                pos = 0;

                if(field>=10) break;
            }
            
        }
    }
    token[field][pos]='\0';
    field++;

    for(int i=0;i<field;i++){
        printf("%s\n",token[i]);
    }
}

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

    parse_shell_input(line);
    return 0;
}

Solving Approach

 

 

 

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Input

led set 3 on

Expected Output

led set 3 on