LinuxÎļþºÍĿ¼·ÃÎÊȨÏÞÉèÖÃ
Z
µ±Ö´ÐÐ
ls -l
»ò
ls -al
ÃüÁîºóÏÔʾµÄ½á¹ûÖУ¬×îÇ°ÃæµÄµÚ
2
¡«
10
¸ö×Ö·ûÊÇÓÃÀ´±íʾȨÏÞ¡£µÚÒ»¸ö×Ö·ûÒ»°ãÓÃÀ´Çø·ÖÎļþºÍĿ¼£º
d
£º±íʾÊÇÒ»¸öĿ¼£¬ÊÂʵÉÏÔÚ
ext2fs
ÖУ¬Ä¿Â¼ÊÇÒ»¸öÌØÊâµÄÎļþ¡£
££º±íʾÕâÊÇÒ»¸öÆÕͨµÄÎļþ¡£
l:
±íʾÕâÊÇÒ»¸ö·ûºÅÁ´½ÓÎļþ£¬Êµ¼ÊÉÏËüÖ¸ÏòÁíÒ»¸öÎļþ¡£
b
¡¢
c
£º·Ö±ð±íÊ¾Çø¿éÉ豸ºÍÆäËûµÄÍâΧÉ豸£¬ÊÇÌØÊâÀàÐ͵ÄÎļþ¡£
s
¡¢
p
£ºÕâЩÎļþ¹ØÏµµ½ÏµÍ³µÄÊý¾Ý½á¹¹ºÍ¹ÜµÀ£¬Í¨³£ºÜÉÙ¼ûµ½¡£
µÚ
2
¡«
10
¸ö×Ö·ûµ±ÖеÄÿ
3
¸öΪһ×飬×ó±ßÈý¸ö×Ö·û±íʾËùÓÐÕßȨÏÞ£¬Öмä
3
¸ö×Ö·û±íʾÓëËùÓÐÕßͬһ×éµÄÓû§µÄȨÏÞ£¬ÓÒ±ß
3
¸ö×Ö·ûÊÇÆäËûÓû§µÄȨÏÞ¡£ÕâÈý¸öÒ»×é¹²
9
¸ö×Ö·û£¬´ú±íµÄÒâÒåÈçÏ£º
r(Read
£¬¶ÁÈ¡
)
£º¶ÔÎļþ¶øÑÔ£¬¾ßÓжÁÈ¡ÎļþÄÚÈݵÄȨÏÞ£»¶ÔĿ¼À´Ëµ£¬¾ßÓÐä¯ÀÀÄ¿
¼µÄȨÏÞ¡£
w(Write,
дÈë
)
£º¶ÔÎļþ¶øÑÔ£¬¾ßÓÐÐÂÔö¡¢ÐÞ¸ÄÎļþÄÚÈݵÄȨÏÞ£»¶ÔĿ¼À´Ëµ£¬¾ßÓÐɾ³ý¡¢Òƶ¯Ä¿Â¼ÄÚÎļþµÄȨÏÞ¡£
x(eXecute
£¬Ö´ÐÐ
)
£º¶ÔÎļþ¶øÑÔ£¬¾ßÓÐÖ´ÐÐÎļþµÄȨÏÞ£»¶ÔĿ¼ÁËÀ´Ëµ¸ÃÓû§¾ßÓнøÈëĿ¼µÄȨÏÞ¡£
££º±íʾ²»¾ßÓиÃÏîȨÏÞ¡£
Ïà¹ØÎĵµ£º
#include
#include
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
void *thread1(void *);
void *thread2(void *);
int i=1;
main(void)
{
pthread_t t_a;
pthread_t t_b;
pthread_create(&t_a,NULL,thread1,(void *)NULL) ......
×ܽáÕ½ڣºµÚÒ»Õ É豸Çý¶¯³ÌÐò¼ò½é
µÚ¶þÕ ¹¹ÔìºÍÔËÐÐÄ£¿é
Ìáµ½Çý¶¯³ÌÐò¾Í²»µÃ²»ÏÈ˵ÏÂÁ½¸öÃû´Ê£ºÄں˿ռäºÍÓû§¿Õ¼ä¡£Óû§¿Õ¼ä¼´Óû§Ó¦ÓÃËùÔËÐеĿռ䣬Äں˿ռäÖµµÃÊDzÙ×÷ϵͳÄÚºËÔËÐеĿռ䡣Óû§¿Õ¼ä²»ÄÜÖ±½ÓÒýÓûòÕß²Ù×÷Äں˿ռäµÄÊý¾Ý£¬Äں˿ռäÒ²²»ÄÜÖ±½ ......
/*
* ¸ÃÎļþÖеÄÁ½¸öº¯Êýread_pipeºÍwrite_pipeÊÇÉϲ㺯Êý
* readºÍwriteµÄµ×²ãʵÏÖ
*/
/*
* linux/fs/pipe.c
*
* (C) 1991 Linus Torvalds
*/
#include <signal.h>
#include <linux/sched.h>
// ÄÚ´æ¹ÜÀíÍ·Îļþ¡£º¬ÓÐÒ³Ãæ´óС¶¨Òåº ......
/*
* linux/fs/file_dev.c
*
* (C) 1991 Linus Torvalds
*/
#include <errno.h>
#include <fcntl.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <asm/segment.h>
#define MIN(a,b) (((a)<(b))?(a):(b))
#defi ......