Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Communicate to the OS(linux) using front end. Post 302424301 by pludi on Tuesday 25th of May 2010 01:53:39 AM
Old 05-25-2010
Usually, that's a Bad Idea™. If you have to do it, only allow a few fixed static commands, allowing no user input.

If you have to accept user input be very restrictive about it, and check it for disallowed commands. Since any command will run with the ID of the web server, one malicious user can destroy the whole website, or even the system itself (it takes only one "Bobby Tables").

Once you've checked everything, call Runtime.getruntime().exec()
 

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Front end on Unix

Hi, I would like to develop a user interface on Solaris. Can anybody throw some light on currently available software utilities/ packages..? Thanks in Advance .. JS (4 Replies)
Discussion started by: shibz
4 Replies

2. Programming

Running exe's from front end

Hi, I have created a tool which analyses and debugs cobol programs on Unix environment usin the C files. I now want to create a frontend for the tool in windows. For this i need to establish some kinda communication between the front the end and the back end. I know pipes in one way of... (0 Replies)
Discussion started by: Sinbad
0 Replies

3. Shell Programming and Scripting

remove space in front or end of each field

Hi, I have a txt file called a.txt which contain over 10,000 records and I would like to remove space before comma or after comma....like below: The input (for example two record 00001,00002): 00001,client,card limited ,02292,N ,162:41 , 192, ... (6 Replies)
Discussion started by: happyv
6 Replies

4. UNIX for Dummies Questions & Answers

Sed $ appending to front, not to the end

I keep trying to append some astrix to the end of a line, but it keeps overwriting at the front of the line. These are the originals Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 ... (5 Replies)
Discussion started by: DrSammyD
5 Replies

5. UNIX for Dummies Questions & Answers

Stripping double quotes from front and end of a line

I have a file and some records may contain double quotes at beginning and at end of line. So how do I strip them? For Example, file is somethings like this Field1;Field2;Field3 01;'Test';'Test Field3' "01;'This is 2nd field';This is 3rd field' " Desired Output is: ... (6 Replies)
Discussion started by: vx04
6 Replies

6. Programming

Publish notification via application front end

hi All I use tomcat server to publish war file. How to send an notification to users via the application screen and it should dismiss once user clicks X mark. Any suggestions ? (0 Replies)
Discussion started by: anil529
0 Replies

7. What is on Your Mind?

Idea for a New Forum Front End Using Unity and SciFi Assets

Tonight I was looking into maybe creating a new front end using something like this (see video below) where the database stays the same but the user interaction happens in a virtual scifi world, such as 3D Scifi Base Vol 1 which is a 3D Models/Environments in Sci-Fi for Unity. lo1lFIIxrD8 ... (16 Replies)
Discussion started by: Neo
16 Replies

8. Programming

Recommendation: gede - graphical gdb front-end

gede is a graphical debugger, a front-end for good ole uncle gdb. gede doesn't need a specialized gdb version. :b: Unfortunately its a qt app, nevertheless it fits well in a gtk desktop environment.:eek: Its author Johan Henriksson is a smart and nice guy always open for bug reports and... (2 Replies)
Discussion started by: dodona
2 Replies
Browser::Open(3pm)					User Contributed Perl Documentation					Browser::Open(3pm)

NAME
Browser::Open - open a browser in a given URL VERSION
version 0.03 SYNOPSIS
use Browser::Open qw( open_browser ); ### Try commands specific to the current Operating System my $ok = open_browser($url); # ! defined($ok): no recognized command found # $ok == 0: command found and executed # $ok != 0: command found, error while executing ### Try all known commands my $ok = open_browser($url, 1); DESCRIPTION
The functions optionaly exported by this module allows you to open URLs in the user browser. A set of known commands per OS-name is tested for presence, and the first one found is executed. With an optional parameter, all known commands are checked. The "open_browser" uses the "system()" function to execute the command. If you want more control, you can get the command with the "open_browser_cmd" or "open_browser_cmd_all" functions and then use whatever method you want to execute it. API
All functions are not exported by default. You must ask for them explicitly. open_browser my $ok = open_browser($url, $all); Find an appropriate command and executes it with your $url. If $all is false, the default, only commands that match the current OS will be tested. If true, all known commands will be tested. If no command was found, returns "undef". If a command is found, returns the exit code of the execution attempt, 0 for success. See the "system()" for more information about this exit code. If no $url is given, an exception will be thrown: "Missing required parameter $url". open_browser_cmd my $cmd = open_browser_cmd(); Returns the best command found to open a URL on your system. If no command was found, returns "undef". open_browser_cmd_all my $cmd = open_browser_cmd_all(); Returns the first command found to open a URL. If no command was found, returns "undef". AUTHOR
Pedro Melo, "<melo at cpan.org>" COPYRIGHT &; LICENSE Copyright 2009 Pedro Melo. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-03-09 Browser::Open(3pm)
All times are GMT -4. The time now is 04:53 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy