Hi All!
I would like to solve a problem but I have no clue of how do it!I will be grateful if someone could help me!
I have a file like this:
> genes | transcript
...sequence....
I would like to obtain a file like this, that reports the IDs and the numbers of letters:
Do you have any suggestion?
Thanks!
Giuliano
Last edited by Don Cragun; 02-03-2014 at 06:13 AM..
Reason: Use CODE tags, not HTML tags for sample input and output.
Hello, Member or professional
need help how to count characters by line of file
Example of the file is here
cdr20080817164322811681txt
cdr20080817164322811txt
cdr20080817164322811683txt
cdr20080817164322811684txt
I want to count the characters by line of file . The output that I... (4 Replies)
I have a file that I need to count the number of "Y"s in the file, but just the "Y"s that fall between certain columns. Like:
file1:
1234567890123456789012345
BBBBBBYBBBBYBBYBBYBBYBBB
I want to count the 'Y's between 17 and 21 = 2 "Y"s
Thanks (12 Replies)
Hi all,
I like to know how to get the count of each character in a given word. Using the commands i can easily get the output. How do it without using the commands ( in shell programming or any programming)
if you give outline of the program ( pseudo code )
i used the following commands
... (3 Replies)
to delete the duplicate characters in a file I used this code
cat file.txt|tr -s ""
tell the other ways using sed
command to count of duplicate characters
thanks:) (0 Replies)
Hi i have data like
abchd 124 ldskc aattggcc
each separated by tab space i want to count number of characters in 4th column and print it in new column with tabspace for every line can anyone help me how to do it.
Thanks. (3 Replies)
Hi everyone, and thanks after all
I'm a biologist and i have to extract information from one text. The text is something like this
1023 A A 56 0 cc...,,,,..gg..Cc.c,,c..CC..,,
1024 T T 86 0 ..,,,..aaAA..,,aAA,,a,,A,,a
1025 G G 125 0 ... (5 Replies)
What I'm trying to accomplish. I receive a Header and Detail file for daily processing. The detail file comes first which holds data, the header is a receipt of the detail file and has the detail files record count. Before processing the detail file I would like to put a wrapper around another... (4 Replies)
I want count number of characters / find the length of the 'wc -l' output
This is the command
bash-3.2$ gzcat /home/sid/file1.dat |wc -l
830752
So final out I want is 6 i.e lenght of 830752
I tried with awk
bash-3.2$ gzcat /home/sid/file1.dat |wc -l | awk '{print length ($0)... (3 Replies)
Hello,
I have been working on Awk/sed one liner which counts the number of occurrences of '|' in pipe separated lines of file and delete the line from files if count exceeds "17".
i.e need to get records having exact 17 pipe separated fields(no more or less)
currently i have below :
awk... (1 Reply)
Need to count consecutive characters in a string and give the output as below
i/p=aaaabbcaa
o/p=a4b2c1a2 (10 Replies)
Discussion started by: prasanna2166
10 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)