linux C ¶ÁȡĿ¼Îļþ²¢Í³¼ÆÎļþÊý
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
#define MAX 1024
int get_file_count(char *root)
{
DIR *dir;
struct dirent * ptr;
int total = 0;
char path[MAX];
dir = opendir(root); /* ´ò¿ªÄ¿Â¼*/
if(dir == NULL)
{
perror("fail to open dir");
exit(1);
}
errno = 0;
while((ptr = readdir(dir)) != NULL)
{
//˳Ðò¶Áȡÿһ¸öĿ¼Ï
//Ìø¹ý“..”ºÍ“.”Á½¸öĿ¼
if(strcmp(ptr->d_name,".") == 0 || strcmp(ptr->d_name,"..") == 0)
{
continue;
}
//printf("%s%s\n",root,ptr->d_name);
//Èç¹ûÊÇĿ¼£¬ÔòµÝ¹éµ÷Óà get_file_countº¯Êý
if(ptr->d_type == DT_DIR)
{
sprintf(path,"%s%s/",root,ptr->d_name);
//printf("%s\n",path);
total += get_file_count(path);
}
if(ptr->d_type == DT_REG)
{
total++;
printf("%s%s\n",root,ptr->d_name);
}
}
if(errno != 0)
{
printf("fail to read dir"); //ʧ°ÜÔòÊä³öÌáʾÐÅÏ¢
exit(1);
}
closedir(dir);
return total;
}
int main(int argc, char * argv[])
{
int total;
if(argc != 2)
{
printf("wrong usage\n");
exit(1);
}
total = get_file_count(argv[1]);
printf("%s ha %d files\n",argv[1],total);
return 0;
}
Ïà¹ØÎĵµ£º
Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
·þÎñ·¢ÏÖÐÒé(SDP»òBluetooth SDP)ÔÚÀ¶ÑÀÐÒéÕ»ÖжÔÀ¶ÑÀ»·¾³ÖеÄÓ¦ÓóÌÐòÓÐÌØÊâµÄº¬Ò⣬·¢ÏÖÄĸö·þÎñÊÇ¿ÉÓõĺÍÈ·¶¨ÕâЩ¿ÉÓ÷þÎñµÄÌØÕ÷¡£SDP¶¨ÒåÁËbluetooth client·¢ÏÖ¿ÉÓÃbluetooth server·þÎñºÍËüÃǵÄÌØÕ÷µÄ·½·¨¡£ ......
ÁÖÄÉ˹·ÍÐÍß×È
¡¡¡¡
ÁÖÄÉ˹·±¾ÄɵڿËÌØ·ÍÐÍß×È(Linus Benedict Torvalds, 1969Äê~ )£¬µ±½ñÊÀ½ç×îÖøÃûµÄµçÄÔ³ÌÐòÔ±£¨³Ìʽʦ£©¡¢ºÚ¿Í£¨º§¿Í£©¡£LinuxÄں˵ķ¢Ã÷È˼°¸Ã¼Æ»®µÄºÏ×÷Õß¡£ÍÐÍß×ÈÀûÓøöÈËʱ¼ä¼°Æ÷²Ä´´Ôì³öÁËÕâÌ×µ±½ñÈ«Çò×îÁ÷ÐеIJÙ×÷ϵͳ£¨×÷ҵϵͳ£©ÄÚºËÖ®Ò»¡£
¡¡¡¡ÍÐÍß×È1969Äê12ÔÂ28È ......
LinuxϵĴÅÅÌËéƬÕûÀí
ÍøÉÏÓÐЩÌû×Ó˵XFS²»ÓÃ×öËéƬÕûÀí£¬ÆäʵÊÇ´íÎóµÄ¡£XFSÓÃÑÓ³ÙдÈëµÈ¼¼Êõȷʵ¿ÉÒÔ¼õÉÙËéƬµÄ³öÏÖ£¬µ«ÊÇÈç¹û·þÎñÆ÷ÓÃÁ˼¸Ä꣬²¢ÇÒÎļþ²Ù×÷±È½ÏƵ·±£¬»¹ÊÇ»á³öÏÖËéƬµÄ£¬Ó¦¸ÃÕûÀí¡£×¢Ò⣺ÔÚDebianÖÐXFSÏà¹ØÃüÁîÔÚxfsprogs°üÖУ¬¶øxfs_fsrÃüÁîÊÇÔÚxfsdump°üÖеġ£ËùÒÔÒªÓÃxfs_fsrÕûÀíËéƬ£¬¼ÇµÃ°²×°xfsdu ......
linuxÄÚºËinit½ø³Ìº¯ÊýµÄ²¿·Ö´úÂëÈçÏ£º 01 if (execute_command)
02 run_init_process(execute_command);
03
04 run_init_process("/sbin/init");
05 run_init_process("/etc/init");
06 run_init_process("/bin/init");
07 run_init_process("/ ......