c语言的linux命令行参数

#include <stdio.h>

int main(int argc, char *argv[]) {
    printf("Program name is: %s
", argv[0]);

    for (int i = 1; i < argc; i++) {
        printf("Argument %d is: %s
", i, argv[i]);
    }

    return 0;
}

#include <stdio.h>
#include <unistd.h>

int main(int argc, char *argv[]) {
    int opt;

    while ((opt = getopt(argc, argv, "abc:")) != -1) {
        switch (opt) {
            case 'a':
                printf("Option a
");
                break;
            case 'b':
                printf("Option b
");
                break;
            case 'c':
                printf("Option c with value '%s'
", optarg);
                break;
            case '?':
                fprintf(stderr, "Usage: %s [-a] [-b] [-c value]
", argv[0]);
                return 1;
        }
    }

    return 0;
}