Hi, I've got a file where in the middle of the record is a $ end of line character, visible only when I open the file in vi and do :set list. How to I get rid of the character in the middle and keep it at the end. The middle $ character always appears after SW, so that can be used to tag it.... (3 Replies)
HI i am having a file this
(sys19:pnlfct:/pfact/temp>) cat temp_sand
1234567890
1234567890
1234567890
1234567890
I want to make this file as
(sys19:pnlfct:/pfact/temp>) cat temp_sand
1456789023
1456789023
1456789023
1456789023
just take the 2nd and 3rd position and put it... (5 Replies)
hi all, i have this question: How to add new line character at the end of a file????
i need this because i am loading a file to sybase and i have problems with the last record
thanks for your help (5 Replies)
Hi,
i want to append a character '|' at end of each line of a file abc.txt.
for example if the file abc.txt conatins:
a|b|c
1|2|33
w|2|11
i want result file xyz.txt
a|b|c|
1|2|33|
w|2|11|
I know this is simple but sumhow i am not able to reach end of line.
its urgent, thanks for... (4 Replies)
hi all
i have 32 lines in file. the length of each line is 82 , i want that in the end of each line , means in postion 83-84 to put two characters 0d(=\015), 0a(=\012)
i want that the 0d will be in postion 83
and the 0a will be in postion 84
in each line of the file
how shall i do it ?
... (7 Replies)
I need to remove new line character from end of file.
Suppose here are content.
a|b|c|d|r
a|b|c|d|r
a|b|c|d|r
<new line>
that means file contains 4 lines but data is there in 3 lines.
so I want that only 3 lines should be there in file.
Please help (20 Replies)
how to Remove comma as last charector in end of last line of file:
example:
input file
---------------
aaaaaa,
bbbbbb,
cccc,
12345,
____________
output file :
-----------
aaaaaa,
bbbbbb, (6 Replies)
Hai,
I have got a small requirement in my script. and i am using bash shell. I need to add a dot (.) for some particular line in a file. Say for example,
$Cat rmfile
1 This is line1
2 This is line2
3 This is line3
O/p should be :
$Cat rmfile
1 This is line1
2 This is line2. #... (2 Replies)
Hi All,
I have following piece of code in UNIX C Shell script and I want to add one more command which can add newline at the end of file only if there is no newline character exists.
foreach file (`ls $dd_PLAYCARD_EDI_IN`)
if ( -f $dd_PLAYCARD_EDI_IN/${file} ) then
cat -n... (4 Replies)
Hi,
I would like have a shell script to check every line in a file to see if it ends with ";". If this is NOT the last character ";" should be added.
MyFile.csv :
web9331801;01/01/2014 23:39:35;;"93962";353150256;
web9331802;01/01/2014 23:44:29;;"479288";353153538;
web9331803;01/01/2014... (14 Replies)
Discussion started by: vg77
14 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)