linux c获取系统信息

#include <stdio.h>

int main() {
    FILE *fp;
    char buffer[1024];

    fp = fopen("/proc/cpuinfo", "r");
    if (fp == NULL) {
        perror("Failed to open /proc/cpuinfo");
        return 1;
    }

    while (fgets(buffer, sizeof(buffer), fp)) {
        printf("%s", buffer);
    }

    fclose(fp);
    return 0;
}

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>

int main(int argc, char *argv[]) {
    struct stat fileStat;

    if(stat(argv[1], &fileStat) < 0) {
        perror("stat");
        return 1;
    }

    printf("File size: %ld bytes\n", fileStat.st_size);
    printf("Last modified: %s", ctime(&fileStat.st_mtime));

    return 0;
}