02-17-2015
Yeah your right. It is not possible.
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1. UNIX for Dummies Questions & Answers
Hello
I am new to shell scripting and can anyone tell me how to check if there are any special characters in a file. Can i use grep ?
thanks
susie (2 Replies)
Discussion started by: cramya80
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2. UNIX for Dummies Questions & Answers
Hi,
I have a file which has special characters. I can't see them when I "vi" the file. But I am sure there are some special un seen characters. How can I see them?
Please help.
Thx (6 Replies)
Discussion started by: jingi1234
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3. UNIX for Dummies Questions & Answers
Hi,
I have a data like this in a file,
402003279034002000100147626030003300010000000000002000029000000 ær^M^\MÍW^H
I need to replace those special char to some other char like # or $
Is there any ways to do it...
I tried commands tr,sed and many but it was not able to replace because... (1 Reply)
Discussion started by: solai
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4. UNIX for Dummies Questions & Answers
I don't now exactly how I did it, but I created a file named " -C "
cexdi:/home1 $ls -lt
total 1801336
-rw------- 1 cexdi ced-group 922275840 23 mars 10:03 -C
How do I delete this file ?
cexdi:/home1 $rm -C
rm: invalid option -- C
Syntax : rm filename ...
Doesn't work...... (5 Replies)
Discussion started by: yveslagace
5 Replies
5. Shell Programming and Scripting
I have file special.txt with the following data.
<header info>
123$ty5%98&0asd
1@356fgbv78
09*&^5jkns43(
...........some more rows.
In my output file, I want to eliminate all the special characters in my file and I want all other data. need some help. (6 Replies)
Discussion started by: srivsn
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6. Shell Programming and Scripting
dear, I would like to rename files in a dir to another format, so I write a bash shell script to handle it. But my problem now is how to handle files having special characters like spaces, (, ):
"a b c (d).doc"
It seems that I need to escape those characters before applying the "mv" command.... (1 Reply)
Discussion started by: lau0001
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7. Shell Programming and Scripting
Hi,
I am facing a below problem. Inorder to mak sure the below file is fixed width i am using the following command
awk '{printf("%-375s\n", $0) } so as to add trailing spaces at the end for records of length less than 375.
Input file > inp.txt
1©1234
1234
123©1
The output file is... (1 Reply)
Discussion started by: marcus_kosaman
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8. Shell Programming and Scripting
Hello All,
I am facing challenges in order to transfer a file from windows to unix box,the file contains a special character '×' ,now when I am transferring the file from windows to unix that special character converted to something else like 'Ã' ,another thing I have noticed that the hardware is... (1 Reply)
Discussion started by: prarat
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9. Shell Programming and Scripting
Hi experts :)
I need to replace special characters into a file , in the followiing way :
" --> ""
' --> ''
_--> \_
I tried with the sed command but I'm getting and error ksh: $: not found.
ksh: $: not found.
sed: Function s/\/\/ cannot be parsed.
Any idea ?
Thanks ,
KOLAS... (2 Replies)
Discussion started by: Kolas79
2 Replies
10. UNIX for Beginners Questions & Answers
I am trying to rename files with spaces and other characters and not able to be successful.
FileNames:
UPLOAD REFERENCE.xls
UPLOAD MASS REFERENCE.XLS
find /UPLOAD REFERENCE/ -depth -type f -name "* *" -exec rename " " "_" "{}" ";"
The above one is successful to replace spaces... (1 Reply)
Discussion started by: eskay
1 Replies
LEARN ABOUT DEBIAN
lwp::robotua
LWP::RobotUA(3pm) User Contributed Perl Documentation LWP::RobotUA(3pm)
NAME
LWP::RobotUA - a class for well-behaved Web robots
SYNOPSIS
use LWP::RobotUA;
my $ua = LWP::RobotUA->new('my-robot/0.1', 'me@foo.com');
$ua->delay(10); # be very nice -- max one hit every ten minutes!
...
# Then just use it just like a normal LWP::UserAgent:
my $response = $ua->get('http://whatever.int/...');
...
DESCRIPTION
This class implements a user agent that is suitable for robot applications. Robots should be nice to the servers they visit. They should
consult the /robots.txt file to ensure that they are welcomed and they should not make requests too frequently.
But before you consider writing a robot, take a look at <URL:http://www.robotstxt.org/>.
When you use a LWP::RobotUA object as your user agent, then you do not really have to think about these things yourself; "robots.txt" files
are automatically consulted and obeyed, the server isn't queried too rapidly, and so on. Just send requests as you do when you are using a
normal LWP::UserAgent object (using "$ua->get(...)", "$ua->head(...)", "$ua->request(...)", etc.), and this special agent will make sure
you are nice.
METHODS
The LWP::RobotUA is a sub-class of LWP::UserAgent and implements the same methods. In addition the following methods are provided:
$ua = LWP::RobotUA->new( %options )
$ua = LWP::RobotUA->new( $agent, $from )
$ua = LWP::RobotUA->new( $agent, $from, $rules )
The LWP::UserAgent options "agent" and "from" are mandatory. The options "delay", "use_sleep" and "rules" initialize attributes
private to the RobotUA. If "rules" are not provided, then "WWW::RobotRules" is instantiated providing an internal database of
robots.txt.
It is also possible to just pass the value of "agent", "from" and optionally "rules" as plain positional arguments.
$ua->delay
$ua->delay( $minutes )
Get/set the minimum delay between requests to the same server, in minutes. The default is 1 minute. Note that this number doesn't
have to be an integer; for example, this sets the delay to 10 seconds:
$ua->delay(10/60);
$ua->use_sleep
$ua->use_sleep( $boolean )
Get/set a value indicating whether the UA should sleep() if requests arrive too fast, defined as $ua->delay minutes not passed since
last request to the given server. The default is TRUE. If this value is FALSE then an internal SERVICE_UNAVAILABLE response will be
generated. It will have an Retry-After header that indicates when it is OK to send another request to this server.
$ua->rules
$ua->rules( $rules )
Set/get which WWW::RobotRules object to use.
$ua->no_visits( $netloc )
Returns the number of documents fetched from this server host. Yeah I know, this method should probably have been named num_visits() or
something like that. :-(
$ua->host_wait( $netloc )
Returns the number of seconds (from now) you must wait before you can make a new request to this host.
$ua->as_string
Returns a string that describes the state of the UA. Mainly useful for debugging.
SEE ALSO
LWP::UserAgent, WWW::RobotRules
COPYRIGHT
Copyright 1996-2004 Gisle Aas.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-02-11 LWP::RobotUA(3pm)