are basically the same. The only difference is that the second one creates the 10 spaces in a (bash) subshell. The command printf "%10s" creates exactly 10 spaces. I omitted the arg "". Syntactically not correct, but it works too.
Hello,
I have the following to remove spaces from beginning and end of a string.
infile=`echo "$infilename" | sed 's/^ *//;s/ *$//`
How do I modify the above code to remove spaces from beginning, end and in the middle of the string also.
ex:
... (4 Replies)
dear pro-coders,
is there any command out there that takes out the front spaces from a string?
sample strings:
4 members
5 members
3 members
but it has to be like so:
4 members
5 members
3 members (3 Replies)
Hi, all,
I wonder if I can use sed to insert a string which has a colon.
I have a txt file a.txt like the following
TRAIN/DR1/FCJF0/SI1027.MFC
TRAIN/DR1/FCJF0/SI1657.MFC
I want to insert a string C:/TIMIT/TIMIT at the begining of each line.
I use the commond:
TIM=C\:/TIMIT/TIMIT... (2 Replies)
Hi
I have an XML file with strings XABCD, XEFGHX and XIJKLX. I would like to replace XABCDX with "This is the first string", XEFGHX with "This is the second string" and XIJKLX with "This is the third string".
What is the best way to implement this? Should I have a file with the data that is... (4 Replies)
Hi,
i call my shell like:
my_shell "my project name"
my script:
#!/bin/bash -vx
projectname=$1
sed s/'PROJECT_NAME ='/'PROJECT_NAME = '$projectname/ <test_config_doxy >temp
cp temp test_config_doxy
the following error occurres:
sed s/'PROJECT_NAME ... (2 Replies)
Hi Experts,
I wish to insert predefined text in front of every line and this needs to be in a loop because it is always expanding.
Before :
11111111
22222222
33333333
44444444
55555555
77777777
88888888
00000000
To be Inserted :
a=
b= (2 Replies)
Hi:
I have 2 files: teststring.txt and a tempfile.txt
teststring file contains:
s/Primary Ins./\n1/g
I'm trying to search for "Primary Ins." string in tempfile. For every "Primary Ins." string that is found, a new line is inserted and put in number 1. Then, write out the newfile... (7 Replies)
Solaris, ksh
I have a .csv file I am trying to clean up before loading into the database. The file contains comma separated columns that have leading spaces which I need to remove. The trouble is, some columns that should not be touched are strings which happen to have the same pattern in them. ... (4 Replies)
Hello Gurus,
I wanted to put a single quote in every where starting with /oradata, and at the end with .dbf.
For example I have one line as below:
alter database rename datafile /oradata/test.dbf to /oradata_new/test.dbf I wanted as below
alter database rename datafile '/oradata/test.dbf' to... (3 Replies)
Hello,
Just surfed on the web for probable answers but could not get them working.
I wish to replace the string containing spaces by another phrase but below answers did not work.
My string is:
PAIN & GAIN
I wish to convert it to:
P&G
I just need it working with sed with function -i
... (6 Replies)
Discussion started by: baris35
6 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)