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maybe you are using ssh , and the files you cat are too large, so it cores and you are disclosed from the host

echo -n "enter a word:"

for i in `comm -23 1.txt 2.txt`
do
iptables -A INPUT --dport $i -j DROP
iptables -A OUTPUT --dport $i -j DROP
done

newname=`head -c 3 $filename`
tail -c +3 $filename > $newname

thanks a lot

it seems as if the pipe does not work here?

hi:
how can i use ssh with password in the command line .

var="\*"
echo $var
---------------------
or
var='\*'
echo $var

thanks

you can treat first post and second post as the same, and ignore the first.
just give tips about the second.
thanks

for the second,i want to get the output as:
seedurl1,htmlurl1
seedurl1,htmlurl2
seedurl1,htmlurl3
.....
seedurlm,htmlurl1
seedurlm,htmlurl2
seedurlm,htmlurl3
....


thanks,any idea

hi
i have a file which is very large . it contains lines in the format below:

seed url, html url
....
...
seed url, html url

i have sort it already.
2010ÄÏ·ÇÊÀ½ç±*_¾º¼¼·ç±©_ÐÂÀËÍø...

yes, can you give me any idea .
thanks

i am using a c++ html parser to extracr links from the web pages.
but there are many abnormal url in the results.
fro exampel:
http://百度:http://www.g.cn
or
http://123/a.html

---------- Post...

rt
3ks:confused:

thanks for the all warmhearted people.
i follow your tips and deal with it .

thanks , i need to go back to my dormitory now.
i will deal with it tomorrow.
thanks

thanks it's this file:
-rw-rw-r-- 1 admin admin 0 4\346\234\210 1 19:42 \033[00m\
\302\267\033[00m$

then how can i remove it .

any idea will be appreciated

if i use the command "find ."
there is a item below:
./.

drwxrwxr-x 7 admin admin 4096 4\346\234\210 8 22:09 \033[00;\
34m.\033[00m$
drwxr-xr-x 6 admin admin 4096 4\346\234\210 8 09:42 \033[00;\
34m..\033[00m$
-rw-rw-r-- 1 admin...

总用量 844528
-rw-rw-r-- 1 admin admin 0 4月 1 19:42 ·
-rw-rw-r-- 1 admin admin 106 4月 1 19:42 client.conf
-rw------- 1 admin admin 25616384 4月 8 17:02 core.15658...

if i have a file named "."
how to delete it.
thanks .

thanks, it does work.:b:

if i have a file whose name is "-r"
how to remove it
any idea will be much appreciated