I have a current code working(named subst1) having a user be able to type this line to substitute words using the sed command:
subst1 old-pattern new-pattern filename
Here is my shell script:
#!/bin/bash
# subst1
ARGS=3
E_BADARGS=65
if
then
echo "Usage: `basename $0`... (1 Reply)
Hey everybody
I need some help on how to order the data in file such as a file have first name last name and city and i would like to order them to in the same order by using sed
thanks alot for your time (6 Replies)
Hi i have a problem how to put som lines on top or in the bottom of the text with sed.
problem is that i am reading from stdin and when i have som lines starting with ++, i have to put some characters on the top of the lines starting with that ++
example of input
oooo
++abcd
++befg... (1 Reply)
Hi folks, maybe somebody here can help me.
I have 2 files. File A and File B. File A contains URLs leading to files on the Internet, with one URL per line; The format of the URLs on each line in File A is .
File B contains only the filenames from each line in File A; One filename per line.
... (11 Replies)
Hi All,
Below is the script which i have written in cygwin:
#!/usr/bin/sh
fname=$1
cat $fname | sed 's/ //g' > fname1
for i in `cat $fname1`
do
echo $i > file1
#param1 is script name
param1=`awk -F , '{print $1}' file1`
param1="$param1.sql"
#param2 is BL
param2=`awk -F , '{print... (5 Replies)
Hi,
i want to replace sub text which is in the middle of long text.
let me be more clear with an example.
Here is the actual text in the xml file
<module-option name="principalDNSuffix">,cn=Users,dc=X,dc=Y</module-option>
Now, in the above text, i want to replace all the content lying... (3 Replies)
Generate a ddl file, we have a flat file which contains many commands like REM, CREATE table, TRuncate etc
This script should copy only create table statements to the ddl file.
Create stmts can be in a single or multiple lines.
ex:- INPUT FILE
create table tbl1
(fld1,... (5 Replies)
Hi, I want to read a file from the command line and remove all the spaces, tabs in it, replacing it with comma(,), and write it to a new file. can you help me out with this scenario. (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Generalize your sub2 script, producing a new script sub3 that will apply a substitution to any number of files... (16 Replies)
Hi Guys,
I have a xml file as below where I need to find the particular XML tag(<dpath>) and delete the content of it.
<?xml version="1.0" encoding="UTF-8"?>
<title>XML</title><head>Ram</head><ControlCenter><doStatus>1</doStatus></ControlCenter><exitlabel>Gzip... (7 Replies)
Discussion started by: Vinoth Kumar G
7 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)