02-13-2016
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
:confused: Hi, 2 questions to get some insight. Thanks
(1) I would like to add a prefix (XX00) in each row of the line in my text file and save a newly generated file another name. How to go about it.
(2) How to insert a blank line into each row in my file. and save the file another name.... (2 Replies)
Discussion started by: merry susana
2 Replies
2. UNIX for Dummies Questions & Answers
okay so I just started this unix class and understood all the test questions but this "normal" question threy me through a loop :confused:. The question is Why are UNIX commands noninteractive and why is their output not usually preceededby header information? This question has been driving me... (2 Replies)
Discussion started by: cinnamonbear
2 Replies
3. Filesystems, Disks and Memory
Hello Everyone!
changing from Microsoft to Macintosh, I connected my hard disk (nearly full) to the apple computer, which could not recognize it. I was prompt to "initialize it", unfortunately I DECIDED YES!!, but just for 1/100 of a second: now I cannot access the hard disk at all.
Is still... (1 Reply)
Discussion started by: NETTO68
1 Replies
4. UNIX for Dummies Questions & Answers
how to make cut and awk treat "a b" as a single column rather then two separate columns "a and b"?
how to remove " symbol from "a b" so there is only a b?
Please help
Regards
Karol (14 Replies)
Discussion started by: sopel39
14 Replies
5. UNIX for Dummies Questions & Answers
Perhaps this is a very dummy question but sorry I don't know other place to do it. We just buy a new cluster of Xeon machines but there is something I don't understand and perhaps someone can help me.
The more /proc/cpuinfo produces the following output (just part of it).
processor : 0... (1 Reply)
Discussion started by: jhc
1 Replies
6. UNIX for Dummies Questions & Answers
I am trying to use 'cut' to get a line from my file. But it seems that 'cut' recongnizes TAB as default. My file uses space instead. So 'cut' doesn't work.
Anybody can tell me how to change the default from TAB to space ? Or how to transform a space-delimited file into tab-delimited file??... (2 Replies)
Discussion started by: kaixinsjtu
2 Replies
7. UNIX for Dummies Questions & Answers
I have a file which contains 6 columns.
But I only need the first 3 columns. So I need to remove the last 3 columns. I checked 'cut' but it seems not working.
So is there a command that could remove certain columns from a file? :(
Thanks a lot!! (5 Replies)
Discussion started by: kaixinsjtu
5 Replies
8. UNIX for Dummies Questions & Answers
Hi, everyone,
I have a matrix, let's say:
1 2 3 4 5 6 ...
4 5 6 7 8 9 ...
7 8 9 1 2 3 ...
3 4 5 6 7 8 ...
.........
(nxm matrix)
Is there a simple command that can take certain specific rows out of the matrix?
e.g., I want to take row 2 (4 5 6 7 8 9 ...) and row 4 (3 4 5 6 7 8... (2 Replies)
Discussion started by: kaixinsjtu
2 Replies
9. IP Networking
Hello everyone,
I have a some doubt about DNS. We have connected to 2 ISPs /ISP#1 and ISP#2/. Our web site's dns zone is located on ISP#1. If connection to ISP#1 is down clients won't find our website. ISP#1 connection went down few times this month.
So we are going to create our website's... (0 Replies)
Discussion started by: sembii
0 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I have a file which has three columns and 200 rows. I would like to print an extra column say "disco" for every 10 th row starting from 4 th row. How is that possible?
Thnx (4 Replies)
Discussion started by: Indra2011
4 Replies
LEARN ABOUT DEBIAN
uri::url
URI::URL(3pm) User Contributed Perl Documentation URI::URL(3pm)
NAME
URI::URL - Uniform Resource Locators
SYNOPSIS
$u1 = URI::URL->new($str, $base);
$u2 = $u1->abs;
DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to
be distributed with the libwww-perl library.
The following differences exist compared to the "URI" class interface:
o The URI::URL module exports the url() function as an alternate constructor interface.
o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase".
o The URI::URL->newlocal class method is the same as URI::file->new_abs.
o URI::URL::strict(1)
o $url->print_on method
o $url->crack method
o $url->full_path: same as ($uri->abs_path || "/")
o $url->netloc: same as $uri->authority
o $url->epath, $url->equery: same as $uri->path, $uri->query
o $url->path and $url->query pass unescaped strings.
o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters)
o $url->params and $url->eparams methods
o $url->base method. See URI::WithBase.
o $url->abs and $url->rel have an optional $base argument. See URI::WithBase.
o $url->frag: same as $uri->fragment
o $url->keywords: same as $uri->query_keywords
o $url->localpath and friends map to $uri->file.
o $url->address and $url->encoded822addr: same as $uri->to for mailto URI
o $url->groupart method for news URI
o $url->article: same as $uri->message
SEE ALSO
URI, URI::WithBase
COPYRIGHT
Copyright 1998-2000 Gisle Aas.
perl v5.14.2 2012-02-11 URI::URL(3pm)