10-09-2009
Bumping up posts or double posting is not permitted in these forums.
Please read the
rules, which you agreed to when you registered, if you have not already done so.
You may receive an infraction for this. If so, don't worry, just try to follow the rules more carefully. The infraction will expire in the near future
Thank You.
The UNIX and Linux Forums.
10 More Discussions You Might Find Interesting
1. Programming
I am new to the unix/linux environment.
AND........
I need to create a mini shell..that displays prompt (i.e., READY:$), accepts a command from std-in, and prints the command and any parameters passed to it. HELP!!!! (8 Replies)
Discussion started by: jj1814
8 Replies
2. Programming
I'm trying to write 2 programs, client & server, that communicate with integers, however, all resources I have found on the net assume that you want to send and recieve information as a character array. I don't want to send my integers as characters, I want to send them as ints (casting them to... (2 Replies)
Discussion started by: Mistwolf
2 Replies
3. Programming
any suggestions on how i could create a simple chat program between two terminals using pipes? thanks (1 Reply)
Discussion started by: kelogs1347
1 Replies
4. Shell Programming and Scripting
Hi All,
I have problem in the following shell script (problem in 2and3 line i guess)
#!/bin/sh
set value1 = 90;
set value2 = 70;
if ; then
echo "$value1 is normal"
else
echo "$value2 is abnormal"
fi
when executed
output:
$ value_test.sh (Enter)
is abnormal
Neither it's printing... (13 Replies)
Discussion started by: user__user3110
13 Replies
5. Shell Programming and Scripting
Hi, I'm new to UNIX shell programming... can anyone help in doing the following :
1) create a text file named "Model File" having following columns :
Name Number Physics Chemistry
2) prompt user to n rows enter the name, number, physics ,chemistry
3) display the entire columns and rows... (1 Reply)
Discussion started by: Mayuri P R
1 Replies
6. UNIX for Dummies Questions & Answers
I start wetting my toes in Linux programming.
I tried the first program myls.c in Advanced Programming in the Unix Environment.
#include <sys/types.h>
#include <dirent.h>
#include "apue.h"
int main(int argc, char *argv)
{
DIR *dp;
struct... (1 Reply)
Discussion started by: cqlouis
1 Replies
7. Shell Programming and Scripting
The circumfrence of a circle is
#!/usr/bin/perl
print 2 * 3.141592654 * 12.50 \n"; # pi= 3.141592654
# r= 12.50
I need a simple program showing me all the steps..to modify the above to prompt for and accept a radius from the person running the... (3 Replies)
Discussion started by: Q2wert
3 Replies
8. Shell Programming and Scripting
Hey all,
Writing a program that searches for a username and if they are online creates a 'beep' and sends the username and date to a log file.
the error i am getting is:
paul.obrien16@aisling:~/os$ bash checklogin
: command not found
Enter username
paul.obrien16
': not a valid... (2 Replies)
Discussion started by: sexyladywall
2 Replies
9. UNIX for Dummies Questions & Answers
i am new to shell scripting!! i am making this program in bourne shell, that asks the user to input "Hello (their name)" or "question (their name)", any other input, "ERROR" will be outputted.
if they input "Hello (name)", i want to out saying Hello (name) but if they input "question (name)", i... (4 Replies)
Discussion started by: bshell_1214
4 Replies
10. Programming
Given the following code inside the function ext3_write_super():
(It's there in Linux kernel 2.6.27.59)
static void ext3_write_super (struct super_block * sb)
{
if (mutex_trylock(&sb->s_lock) != 0)
BUG();
sb->s_dirt = 0;
}
The conditional test at if... (2 Replies)
Discussion started by: Praveen_218
2 Replies
LEARN ABOUT REDHAT
www::robotrules
WWW::RobotRules(3) User Contributed Perl Documentation WWW::RobotRules(3)
NAME
WWW::RobotsRules - Parse robots.txt files
SYNOPSIS
require WWW::RobotRules;
my $robotsrules = new WWW::RobotRules 'MOMspider/1.0';
use LWP::Simple qw(get);
$url = "http://some.place/robots.txt";
my $robots_txt = get $url;
$robotsrules->parse($url, $robots_txt);
$url = "http://some.other.place/robots.txt";
my $robots_txt = get $url;
$robotsrules->parse($url, $robots_txt);
# Now we are able to check if a URL is valid for those servers that
# we have obtained and parsed "robots.txt" files for.
if($robotsrules->allowed($url)) {
$c = get $url;
...
}
DESCRIPTION
This module parses a /robots.txt file as specified in "A Standard for Robot Exclusion", described in
<http://info.webcrawler.com/mak/projects/robots/norobots.html> Webmasters can use the /robots.txt file to disallow conforming robots access
to parts of their web site.
The parsed file is kept in the WWW::RobotRules object, and this object provides methods to check if access to a given URL is prohibited.
The same WWW::RobotRules object can parse multiple /robots.txt files.
The following methods are provided:
$rules = WWW::RobotRules->new($robot_name)
This is the constructor for WWW::RobotRules objects. The first argument given to new() is the name of the robot.
$rules->parse($robot_txt_url, $content, $fresh_until)
The parse() method takes as arguments the URL that was used to retrieve the /robots.txt file, and the contents of the file.
$rules->allowed($uri)
Returns TRUE if this robot is allowed to retrieve this URL.
$rules->agent([$name])
Get/set the agent name. NOTE: Changing the agent name will clear the robots.txt rules and expire times out of the cache.
ROBOTS.TXT
The format and semantics of the "/robots.txt" file are as follows (this is an edited abstract of
<http://info.webcrawler.com/mak/projects/robots/norobots.html>):
The file consists of one or more records separated by one or more blank lines. Each record contains lines of the form
<field-name>: <value>
The field name is case insensitive. Text after the '#' character on a line is ignored during parsing. This is used for comments. The
following <field-names> can be used:
User-Agent
The value of this field is the name of the robot the record is describing access policy for. If more than one User-Agent field is
present the record describes an identical access policy for more than one robot. At least one field needs to be present per record. If
the value is '*', the record describes the default access policy for any robot that has not not matched any of the other records.
Disallow
The value of this field specifies a partial URL that is not to be visited. This can be a full path, or a partial path; any URL that
starts with this value will not be retrieved
ROBOTS.TXT EXAMPLES
The following example "/robots.txt" file specifies that no robots should visit any URL starting with "/cyberworld/map/" or "/tmp/":
User-agent: *
Disallow: /cyberworld/map/ # This is an infinite virtual URL space
Disallow: /tmp/ # these will soon disappear
This example "/robots.txt" file specifies that no robots should visit any URL starting with "/cyberworld/map/", except the robot called
"cybermapper":
User-agent: *
Disallow: /cyberworld/map/ # This is an infinite virtual URL space
# Cybermapper knows where to go.
User-agent: cybermapper
Disallow:
This example indicates that no robots should visit this site further:
# go away
User-agent: *
Disallow: /
SEE ALSO
LWP::RobotUA, WWW::RobotRules::AnyDBM_File
libwww-perl-5.65 2001-04-20 WWW::RobotRules(3)