Hi Everyone,
awk 'BEGIN{print strftime("%c",1272814948)}' | tr -d '\n'
how to change tr -d '\n' to be part of the awk? means awk this pchoh time, and awk also remove '\n', instead of using "|" to combine "tr" command.
Thanks (2 Replies)
Hello everybody,
I have a text file containing 10,000 rows and 5000 columns. The values are separated by a tab.
Ex.
file_ex.ped
1 mike 0 0 2 1 A A G G C T A G
1 jack 0 0 2 2 T A G T C A A C
1 Mary 0 0 1 2 A T G C A T G C
...
I would like a out put file
1 mike 0 0 2 1 AA GG CT AG
1... (7 Replies)
Hi Guys,
I want to combine 2 files and and put together in 1 file and make two columns out it. See below desired output. Any help will be much appreciated.
inputfile1.txt
12345
67890
24580
inputfile2.txt
AAAAA
BBBBB
CCCCC (11 Replies)
This may seem obvious but I am having problems doing this as columns get converted to rows when i try to write a script.
I have 2 files text1.txt and text2.txt each of which have 6 columns of numbers separated by a space.
I need to combine the 2 files so that the output file text3.txt maintains... (2 Replies)
ignore the simplicity of the foo file, my actual file is much more hardcore but this should give you the jist of it. need to combine the two awks into one liner. essentially, need to return the value of one particular field in a file that has multiple comma separated fields. thanks guys
cat foo... (1 Reply)
Hello everyone,
I searched the forum looking for answers to this but I could not pinpoint exactly what I need as I keep having trouble.
I have many files each having two columns and hundreds of rows.
first column is a string (can have many words) and the second column is a number.The files are... (5 Replies)
I have a file of 100,000 entries that look like:
chr1 980547 980667 +
chr1:980547-980667
chr1 980728 980848 +
chr1:980728-980848
chr1 980793 980913 +
chr1:980793-980913
I am trying to reformat them to into 5 columns that are tab delineated:
chr1 980547 980667 + ... (3 Replies)
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)