i have a lot of messages file in the var directory i want to delete
now i want to keep messages.1 to messages.10 and then delete everything else after 10 which is like 10 to 96
obviously i cant delete these files individual, can someone tell me the command to delete messages.11 to... (1 Reply)
Hello all:
I'm trying to use the tr command to change some text in a file, but it is not working as expected. Here's what I'm trying:
tr 'INVOIC01' 'INVOICZZ' < inputfile > outputfile
It looks to be changing not just the entire string, but any characters within. I just want to change the... (2 Replies)
What does 'directory=`pwd $1` ' mean, I know pwd is present working directory, so does that command take the present working directory of the directory the user is in depending on the varible ($1)? (2 Replies)
When I use the mv command like say, mv file1 ../, it will move file1 to the parent directory of my current working directory. But where would the file go if I do mv file ... (with 3 periods), where would this move file1? (4 Replies)
$ echo 2 * 3 > 5 is a valid inequality.
This will create a file in the current directory named '5' with the number '2' in it, the names of all the files in the current directory, followed by the number '3' and 'is a valid inequality.'
What I do not understand is why 'is a valid inequality' gets... (2 Replies)
I am going through the Unix Made Easy second edition book by John Muster. So far it's been very informative and I can tell it may be a bit out of date.
In one of the exercises it talks about the "sort" command and using it to sort column's of data etc. The "sort" command has changed a bit and... (1 Reply)
I am scratching my head right now. I am trying to archive a ton of files in a directory. I am attempting to tar them by year. On our development server if I type ls *_2008* it returns all of the files I am expecting to see. (The format of the filename includes xx_xx_xxx_2008-09-29_xxx.xxxx.xxxx)... (8 Replies)
Hi,
can you please tell me what is the purpose of the following line:
sh -c /home/dir/script.sh || exit 33
what i am confused is the || is this an OR boolean, or it might have some other purpose.
do you know how this works ?
i believe the first to run is the /home/dir/script.sh but what... (4 Replies)
Discussion started by: antoniotunin
4 Replies
LEARN ABOUT CENTOS
extutils::typemaps::outputmap
ExtUtils::Typemaps::OutputMap(3) User Contributed Perl Documentation ExtUtils::Typemaps::OutputMap(3)NAME
ExtUtils::Typemaps::OutputMap - Entry in the OUTPUT section of a typemap
SYNOPSIS
use ExtUtils::Typemaps;
...
my $output = $typemap->get_output_map('T_NV');
my $code = $output->code();
$output->code("...");
DESCRIPTION
Refer to ExtUtils::Typemaps for details.
METHODS
new
Requires "xstype" and "code" parameters.
code
Returns or sets the OUTPUT mapping code for this entry.
xstype
Returns the name of the XS type of the OUTPUT map.
cleaned_code
Returns a cleaned-up copy of the code to which certain transformations have been applied to make it more ANSI compliant.
targetable
This is an obscure optimization that used to live in "ExtUtils::ParseXS" directly.
In a nutshell, this will check whether the output code involves calling "set_iv", "set_uv", "set_nv", "set_pv" or "set_pvn" to set the
special $arg placeholder to a new value AT THE END OF THE OUTPUT CODE. If that is the case, the code is eligible for using the
"TARG"-related macros to optimize this. Thus the name of the method: "targetable".
If the optimization can not be applied, this returns undef. If it can be applied, this method returns a hash reference containing the
following information:
type: Any of the characters i, u, n, p
with_size: Bool indicating whether this is the sv_setpvn variant
what: The code that actually evaluates to the output scalar
what_size: If "with_size", this has the string length (as code,
not constant)
SEE ALSO
ExtUtils::Typemaps
AUTHOR
Steffen Mueller "<smueller@cpan.org">
COPYRIGHT & LICENSE
Copyright 2009, 2010, 2011, 2012 Steffen Mueller
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.3 2012-11-19 ExtUtils::Typemaps::OutputMap(3)