05-30-2012
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is there a way to combine two lines onto a single line...append the following line onto the previous line?
I have the following file that contains some blank lines and some lines I would like to append to the previous line...
current file:
checking dsk c19t2d6
checking dsk c19t2d7
... (2 Replies)
Discussion started by: mr_manny
2 Replies
2. Shell Programming and Scripting
I have file like this
d123, rahim, 140
d123, rahul, 440
d123, begum, 340
d234, bajaj, 755
d234, gajal, 657
I want to group this file like this
d123, rahim, 140
rahul, 440
begum, 340
d234, bajaj, 755
gajal, 657
can any one help me on this
thanks in advance (8 Replies)
Discussion started by: trichyselva
8 Replies
3. Shell Programming and Scripting
Hello All,
I have a small problem with file group/splitting and I am trying to get the best way to perform this in unix. I am trying with awk but need some suggestion what would be the best and fastest way to-do it.
Here is the problem. I have a fixed length file with filled with product... (4 Replies)
Discussion started by: nandhan11891
4 Replies
4. UNIX for Advanced & Expert Users
Hi all,
I have input lines like below:
A;100;Paris;City;10;0;0
A;100;Paris;City;0;10;0
A;100;Paris;City in Europe;0;0;20
B;101;London;City;20;0;0
B;101;London;City;0;20;0
B;101;London;City in Europe;0;0;40
I need to group the above lines to:
A;100;Paris;City in Europe;10;10;20... (4 Replies)
Discussion started by: andy2000
4 Replies
5. Shell Programming and Scripting
Whats a good way to group (by adding a new integer to the front of each line) pairs of lines, such that lines 1 & 2 are group 1, lines 3 & 4 are group 2, etc...
ex input:
A
B
C
D
etc...
ex output:
1A
1B
2C
2D
etc... (5 Replies)
Discussion started by: watingo
5 Replies
6. Shell Programming and Scripting
I am having 6 files named file1,file2....file6 and i need to append number of lines in each file to begining of the file. For example,
If file 1 contains
a
b
c
d
then after adding new line file1 should contain
4
a
b
c
d
Thanks in advance. (2 Replies)
Discussion started by: akhay_ms
2 Replies
7. Shell Programming and Scripting
Hi all,
I have a file with some number of lines. I need to add certain number of lines from another file which may vary according to the user's input and to it.
eg
code:
I/P
file 1
apps/file/xyz
apps/file/abc
apps/file/def
file 2
progs/file/xyz
... (2 Replies)
Discussion started by: Ananthdoss
2 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I am looking for a way to Group the Lines in a file.. Basically My file structure is something like this
A 1 100 abc def
A 1 200 abc def
A 1 300 abc def
A 2 100 pqr def
A 2 200 pqr def
A 2 300 pqr def
A 1 100 abc def
A 1 200 xyz def
A 1 300 xyz def
I need it as... (6 Replies)
Discussion started by: mkandula1983
6 Replies
9. Shell Programming and Scripting
Hi Friends,
I am working on a file which has content as follows
Wed,Database,ABC_cube,loaded
Wed,Logging,out,user,302002654,active,for,0,minutes
Wed,Logging,out,user,109000151,active,for,8,minutes
Wed,Logging,out,user,302002654,active,for,0,minutes... (8 Replies)
Discussion started by: dev.devil.1983
8 Replies
10. Shell Programming and Scripting
Hello,
I have a file like:
str1,"HEX"H,(39),info
str2,"HEX"H,(854548),info
str3,"HEX"H,'BGTOUR',info
str4,"HEX"H,(534322),info
str1,"HEX"H,,info
str3,"HEX"H,'Landing',info
str4,"HEX"H,'BG',info
str1,"HEX"H,,info
str3,"HEX"H,'Ay',info
str1,"HEX"H,(27),info
str2,"HEX"H,(854548),info... (2 Replies)
Discussion started by: apenkov
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)