linuxÏÂʹÓÃyum°²×°gccµÄ¼¸µãÐĵÃ
Èç¹û·þÎñÆ÷ÊÇ×Ô¼ºµÄ£¬²¢ÇÒ»úÆ÷¾ÍÔÚÉí±ß£¬ÄÇʲô¶¼²»ÓÃ˵ÁË£¬È±ÉÙgcc¶¥¶à¾ÍÊÇÖØзÅÈë°²×°ÅÌ£¬°Ñ¿ª·¢¹¤¾ß°ü°²×°ÉÏ¡£µ«ÊÇÈç¹ûÊÇ×âµÄ·þÎñÆ÷£¬ÍйܷþÎñ·½ÄÇ°ïÈËÓָ㲻¶®Äã˵µÄɶ×Ógcc£¬Òª°²×°gccʵÔÚÊÇÌ«Âé·³ÁË¡£ÄãµÃÈ¥ÕÒgccÏà¹ØµÄ°ü£¬°æ±¾ºÅ»¹µÃ±ØÐë¶ÔÓ¦ÉÏ£¬·ñÔò²»¼æÈÝ¡£×î½ü¸øÒ»¸öÅóÓÑ×°gcc£¬×ÅʵͷÌÛÁËÒ»°Ñ¡£ºóÀ´·¢ÏÖyumÕâ¸öºÃ¶«Î÷£¬Ö»ÐèÒªÖ´ÐÐÒ»¸öÃüÁËùÓеķ³ÄÕ¶¼½â³ýÁË¡£
ÅóÓѵÄϵͳÊÇCentOS 5 µÄ£¬ÍйÜÉÌû¸ø°²×°gcc£¬ÓÚÊÇʹÓÃÈçÏÂÁ½¸öÃüÁî¾Í¿É°Ñgcc£¬gcc-c++ͳͳ°²×°ÉÏ£º
yum -y install gcc
yum -y install gcc-c++
yum»á×Ô¶¯²éÕÒÈí¼þµÄÏà¹ØÒÀÀµ°ü£¬×Ô¶¯ÏÂÔØ°²×°£¬È«¹ý³ÌÇáËÉÓä¿ì¡£Ìش˼ǼһÏ¡£
Ïà¹ØÎĵµ£º
½ø³ÌI/Oº¯Êý,Óëpcloseº¯ÊýÒ»ÆðʹÓá£
±íÍ·Îļþ
¡¡¡¡#include <stdio.h>
º¯Êý¶¨Òå
¡¡¡¡FILE * popen
( const char * command
, const char * type
);
¡¡¡¡int pclose
( FILE * stream
);
º¯Êý˵Ã÷
¡¡¡¡
popen() º¯Êýͨ¹ý´´½¨Ò»¸ö¹ÜµÀ£¬µ÷Óà fork ²úÉúÒ»¸ö×Ó½ø³Ì£¬Ö´ÐÐÒ»¸ö shell ÒÔÔËÐÐÃüÁîÀ´¿ªÆôÒ» ......
The physical memory map for Linux is completely independent from the virtual map and is designed to maximize contiguous space. Given that the kernel image will always be at the start of DRAM, the Linux kernel maximizes contiguous space by allocating runtime memory from the end of physical DRAM movin ......
ÔËÐÐÈçÏÂÃüÁ¿É¿´µ½LinuxÖ§³ÖµÄÐźÅÁÐ±í£º
$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL
5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE
9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2
13) SIGPIPE 14) SIGALRM 15) SIGTERM 17) SIGCHLD
18) S ......
ÆäÖÐÓÐһЩº¯ÊýµÄ×÷ÓÃÍêÈ«Ïàͬ£¬Ö»ÊDzÎÊý²»Í¬¡££¨¿ÉÄܺܶàÊìϤC++ÅóÓÑÂíÉϾÍÄÜÁªÏëÆðº¯ÊýÖØÔØ£¬µ«ÊDZðÍüÁËLinuxºËÐÄÊÇÓÃCÓïÑÔдµÄ£¬ËùÒÔÖ»
ÄÜÈ¡³É²»Í¬µÄº¯ÊýÃû£©¡£»¹ÓÐһЩº¯ÊýÒѾ¹ýʱ£¬±»ÐµĸüºÃµÄº¯ÊýËù´úÌæÁË£¨gccÔÚÁ´½ÓÕâЩº¯Êýʱ»á·¢³ö¾¯¸æ£©£¬µ«ÒòΪ¼æÈݵÄÔÒò»¹±£Áô×Å£¬ÕâЩº¯ÊýÔÚÇ°
Ãæ±êÉÏ“*”ºÅÒÔÊ ......
linuxÖУ¬Í¨¹ý
ls -al
ÏÔʾµÄÊôÐÔÖУ¬µÚÒ»¸ö¾Í±êÖ¾ÎļþÀàÐÍ¡£Í¨³£ÓÐһϼ¸ÖÖÇé¿ö£º
[ - ]££££ÆÕͨÎļþ
[ d]££££Ä¿Â¼
[ l ]££££Á¬½ÓÎļþ
[ b]££££¿éÉ豸
[ c ]££££×Ö·ûÉ豸
[ s ]££££Ì×½á×Ö
[ p ]££££¹ÜµÀ ......