linux c 命令行解析

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

void print_usage() {
    printf("Usage: myprogram [-v|--verbose] [-f <file>] [-m <mode>]\n");
}

int main(int argc, char *argv[]) {
    int verbose = 0;
    char *file = NULL;
    char *mode = NULL;

    for (int i = 1; i < argc; i++) {
        if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
            verbose = 1;
        } else if (strcmp(argv[i], "-f") == 0 && i + 1 < argc) {
            file = argv[++i];
        } else if (strcmp(argv[i], "-m") == 0 && i + 1 < argc) {
            mode = argv[++i];
        } else {
            print_usage();
            return 1;
        }
    }

    if (verbose) {
        printf("Verbose mode enabled\n");
    }
    if (file != NULL) {
        printf("Using file: %s\n", file);
    }
    if (mode != NULL) {
        printf("Running in mode: %s\n", mode);
    }

    return 0;
}

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

int main(int argc, char *argv[]) {
    int verbose = 0;
    char *file = NULL;
    char *mode = NULL;

    int opt;
    while ((opt = getopt(argc, argv, "vf:m:")) != -1) {
        switch (opt) {
            case 'v':
                verbose = 1;
                break;
            case 'f':
                file = optarg;
                break;
            case 'm':
                mode = optarg;
                break;
            default:
                print_usage();
                return 1;
        }
    }

    // 处理剩余参数
    for (int i = optind; i < argc; i++) {
        printf("Non-option argument: %s\n", argv[i]);
    }

    return 0;
}

if (verbose && mode != NULL) {
    printf("Error: -v and -m cannot be used together.\n");
    print_usage();
    return 1;
}