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Top Forums Shell Programming and Scripting How to input a number in a web page and pass to a script? Post 302454593 by Neo on Sunday 19th of September 2010 02:50:19 AM
Old 09-19-2010
Quote:
Originally Posted by BobTheBulldog
I am just trying to get the webpage to call the script or pass the variable to the script and execute it just from inputting a number and clicking a button in the webpage.

Yes I am sure about the security aspect of this

Also I made a script right on the router called cpe.sh with one line:

echo "19">/proc/net/dbrctl/maxcpe

just to test it and then I ran it right on the router and it wrote 19 into the maxcpe just fine. The only problem I guess is how to properly read the input from a user and then have it passed to the script and executed properly like the above script but put the users input in place of the 19. Any suggestions?
One obvious problem is that when you test the script from the command line, you are not running with the same userid as your web server is running. To write to the proc file system, you must be root (technically, UID 0).

It is highly unlikely your web server is running as root (it should not be, and never is); hence you cannot just pass a variable via your web server and write to the proc file system.

What is the userid you are using when you test from the command line?

Are you running Apache? What is the userid of the web server when it runs?
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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