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Full Discussion: CGI cannot get the Value after click the button. URGENT!!!
Top Forums UNIX for Dummies Questions & Answers CGI cannot get the Value after click the button. URGENT!!! Post 302337325 by ryanW on Thursday 23rd of July 2009 10:00:48 PM
Old 07-23-2009
CGI cannot get the Value after click the button. URGENT!!!
Hi Everyone,

I am facing a problem, regarding cgi cannot receive the value from HTML after click submit. Here is the code

===============================================
#!/bin/bash
genHTML()
{
cat <<-__EOF__
Content-type: text/html
<html>
<script language="JavaScript">
<!--
function trim(str)
{
str = str.replace( /^\s+/g, "" );// strip leading
return str.replace( /\s+$/g, "" );// strip trailing
}
-->
</script>
<body>
<form name=loginForm id=loginForm method=post action="login.cgi">
<table>
<tr>
<td colspan="2" class="LabelStyle1">LOGIN</td>
</tr>
<tr>
<td><b>User ID: </b>
<input type=text name=username value="" size="15"/></td>
</tr>
<tr>
<td colspan="2" class="blank">&nbsp;</td>
</tr>
<tr>
<td colspan="2" class="blank">&nbsp;</td>
</tr>
<tr>
<tr>
<td class="userPass">Password</td>
<td><input id="pwd" class="inputText" type="password" size="15" /></td>
</tr>
<tr>
<td colspan="2" class="blank">&nbsp;</td>
</tr>
<tr><td align=center>
<font color=red size="+6"><b>$ErrorMessage</b></font>
</td></tr>
<tr>
<td><font size=+1><input type=submit
name=btnLogin value="Login"></font>
</td>
<td><input type="button"
value="Clear" />
</td>
</tr>
<tr>
<td colspan="2" class="blank">&nbsp;</td>
</tr>
</table>
</form>
</body>
</html>
__EOF__
}


echo "username=$username" >> aa.log

if [ "$username" == "123" ]
then
ErrorMessage="INVALID USER ID"
genHTML
elif [ "$username" == "333" ]
./nextpage.cgi
else
genHTML
fi
===========================================


I just wan to get the USERNAME name after the user key and click the button. But, USERNAME is empty that show in the log, seen like after click it will refresh to clear the USERNAME again. Do you know how to get the value after click the button? So, it can do the checking to display error message in the same page or run to other page. My purpose is just wan to know how to get the value after user key in then enter without clear the USERNAME.

Thank you
 

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LEARN ABOUT OPENDARWIN

gzexe

GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME

       gzexe - compress executable files in place

SYNOPSIS

       gzexe [ name ...  ]

DESCRIPTION

       The  gzexe  utility  allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
       penalty in performance).  For example if you execute ``gzexe /bin/cat'' it will create the following two files:
	   -r-xr-xr-x  1 root  bin   9644 Feb 11 11:16 /bin/cat
	   -r-xr-xr-x  1 bin   bin  24576 Nov 23 13:21 /bin/cat~
       /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file.  You can remove /bin/cat~ once  you  are	sure  that
       /bin/cat works properly.

       This utility is most useful on systems with very small disks.

OPTIONS

       -d     Decompress the given executables instead of compressing them.

SEE ALSO

       gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)

CAVEATS

       The  compressed	executable  is a shell script. This may create some security holes. In particular, the compressed executable relies on the
       PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).

BUGS

       gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually  in  some  cases,
       using chmod or chown.

																	  GZEXE(1)
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