Hi,
One silly question. I would like to add statement like below and append to a file. I used the below code; however, it does not work. Can anyone please tell me what mistakes I have made?
awk '
{ for (i=1;i<=563;i++)
print i
}'>>output.txt
Thanks.
-Jason (1 Reply)
ive input file contains to clums a and b spreated by pipe
a | b
123|456
323|455
and
xyz contains other info about a and b
now i want to print as follows:
a | b | "info from xyz"
but "info from xyz" might be more than 1 line and i want to keep the format to 3 cloums.
how to do it?... (3 Replies)
I want to print the 1st field in a comma seperated file to lower case and the rest the case they are.
I tried this
nawk -F"," '{print tolower($0)}' OFS="," file
this converts whole line in to lower case i just want the first column to be converted.
The below doesnt work because in... (11 Replies)
Hello all,
this should really be easy for you... I need AWK to print column maxima for each column of such input:
Input:
1 2 3 1
2 1 1 3
2 1 1 2
Output should be:
2 2 3 3
This does the sum, but i need max instead:
{ for(i=1; i<=NF; i++)
sum +=$i }
END {for(i=1; i in sum;... (3 Replies)
Hi, I'm using a while-loop in an awk script. If it matches a regular expression, it prints a line. Unfortunately, each line that is printed in this loop is followed by an extra character, "1".
While-statement extracted from my script:
getline temp;
while (temp ~ /.* x .*/) print temp... (3 Replies)
Hi everyone,
Ok here's the scenario.
I have a control file like this.
component1,file1,file2,file3,file4,file5
component2,file1,file2,file3,file4,file5I want to do a while loop here to read all files for each component.
file_count=2
while ]
do
file_name=`cat list.txt | grep... (2 Replies)
Hi, I have data of the following type,
chr1 234 678 39 852 638 abcd 7895
chr1 526 326 33 887 965 kilj 5849
Now, I would like to have something like this
chr1 234 678 39 852 638 abcd 7895 <a href="http://unix.com/thread=chr1:234-678">Link</a>
chr1 526 326 33 887 965 kilj 5849 <a... (5 Replies)
I was trying to simplify this from what I'm actually doing, but I started getting even more confused so I gave up. Here is the content of my input file:
Academic year,Term,Course name,Period,Last name,Nickname
2012-2013,First Semester,English 12,7th Period,Davis,Lucille
When I do this:
... (3 Replies)
Experts,
i have a following file containing data in following manner.
1 2480434.4 885618.6 0.00 1948.00
40.00 1952.00
... (6 Replies)
Discussion started by: Amit.saini333
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)