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   kimgs0725
   bash for¹®¿¡ ´ëÇؼ­...

http://www.hackerschool.org/HS_Boards/zboard.php?desc=desc&no=380 [º¹»ç]


Á¦°¡ ´ëÇм±¹èÇÑÅ× ÇÑ ÆÄÀÏÀ» brute force¸¦ ÀÌ¿ëÇØ ¾ÏÈ£¸¦ ¾Ë¾Æ³»¶ó´Âµ¥

for i in $(seq 1 10000)
>do
>echo $i $(./homework $i)
>done

ÀÌ·¨´Âµ¥ ³Ê¹« ¸¹ÀÌ Ãâ·ÂµÇ´Â °Å¿¹¿ä..

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±¸±ÛÀ» ã¾ÆºÃ´Âµ¥µµ ¾î¶»°Ô ÇÏ´ÂÁö ¸ô¶ó¼­ Áú¹®ÇÕ´Ï´Ù.

¾î¶»°Ô Ãâ·Â°á°ú¸¦ ÀúÀåÇϳª¿ä?

¾Æ½Ã´Â ºÐ ÀÖÀ¸½Ã¸é ´ñ±Û ´Þ¾ÆÁÖ½Ã¸é °¨»çÇÕ´Ï´Ù.

  Hit : 2752     Date : 2011/09/15 11:29



    
prosthetics ¸®´ÙÀÌ·ºÆ® 2011/09/16  
kimgs0725 Àú... Á¶±Ý ±¸Ã¼ÀûÀ¸·Î ¾Ë·ÁÁÖ¸é ¾ÈµÉ±î¿ä? 2011/09/18  
´¾´¾ ¿¹Á¦ Çϳª º¸¿©µå¸±°Ô¿ä

homework.c
#include <stdio.h>
int main(int argc, char **argv){
if(atoi(argv[1])==5432){
printf("You tried : %s,Good!\n",argv[1]);
}
else{
printf("You tried : %s,Nah~\n",argv[1]);
}
return 0;
}

[root@localhost ~]# for i in $(seq 1 10000); do echo $i $(./homework $i >> a.txt); done
[root@localhost ~]# cat a.txt | grep Good
You tried : 5432,Good!
2011/09/19  
´¾´¾ À§¿¡ ÀÖ´Â
for i in $(seq 1 10000); do echo $i $(./homework $i >> a.txt); done
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echo $i $(./homework $i >> a.txt);
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echo $i $(./homework $i > a.txt):
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2011/09/19  
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157   Á»ºñ¹ÙÀÌ·¯½º ³íÀï[2]     tkangksmf
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