-sh-4.1$ awk 'FNR==NR{A[$1]=$2;next} ($1 in A){print $0 OFS A[$1];next} !($1 in A){print $0 OFS "missing"}' b a
1 AA IND
2 BB AUS
3 CC missing
4 DD missing
Code:
-sh-4.1$ awk 'FNR==NR{A[$1]=$2;next} {Q=($1 in A)?$0 OFS A[$1]:$0 OFS "missing";print Q;Q=""}' b a
1 AA IND
2 BB AUS
3 CC missing
4 DD missing
Below are the files:
Code:
-sh-4.1$ more a
1 AA
2 BB
3 CC
4 DD
Code:
-sh-4.1$ more b
1 IND 100 200 300
2 AUS 400 500 600
5 USA 700 800 900
I am trying to join/paste columns from two files for the rows with matching first field. Any help will be appreciated.
Files can not be sorted and may not have all rows in both files.
Thanks.
File1
aaa 111
bbb 222
ccc 333
File2
aaa sss mmmm
ccc kkkk llll
ddd xxx yyy
Want to... (1 Reply)
I've got two files, File1 and File2
File 1 has got combination of col1, col2 and col3 which comes on file2 as well, file2 does not get
col4. Now based on col1, col2 and col3, I would like to get col4 from file1 and all the columns from file2 in a new file
Any ideas?
File1
------
Col1 col2... (11 Replies)
Friends, I have a file with fileds in the following order
sda 4.80 114.12 128.69 978424 1103384
sdb 0.03 0.40 0.00 3431 0
sda 1.00 0.00 88.00 0 176
sdb ... (14 Replies)
Hello!
I am very new to Linux and I do not know where to begin...
I have a column with >64,000 elements (that are not in numberical order) like this:
name
2
5
9
.
.
.
64,000
I would like to transpose this column into a row that will later become the header of a very large file... (2 Replies)
hi everyone!
I already posted it in scripts, I'm sorry, it's doubled
I'd like to extract a single column from 5 different files and put them together in an output file. I saw a similar question for 2 input files, and the line of code workd very well, the code is:
awk 'NR==FNR{a=$2; next}... (1 Reply)
hi everyone!
I'd like to extract a single column from 5 different files and put them together in an output file. I saw a similar question for 2 input files, and the line of code workd very well, the code is:
awk 'NR==FNR{a=$2; next} {print a, $2}' file1 file2
I added the file3, file4 and... (10 Replies)
foo.txt
1 rs2887286 0 1145994 C T
1 rs1240743 0 1323299 C A
1 rs1695824 0 1355433 G T
1 rs3766180 0 1468016 G A
1 rs7519837 0 1500664 A G
1 rs2272908 0 ... (12 Replies)
Hi again,
I have monthly one-column files of roughly around 10 years. Is there a more efficient way to concatenate these files column-wise other than using paste command? For instance:
file1.txt
12
13
15
12
file2.txt
14
15
18
19
file3.txt
20
21 (8 Replies)
Hello again,
I am trying to join 3rd column of 3 files into the end on one file and save it separately... my data looks like this
file 1
Bob, Green, 80
Mark, Brown, 70
Tina, Smith, 60
file 2
Bob, Green, 70
Mark, Brown, 60
Tina, Smith, 50
file 3
Bob, Green, 50
Mark, Brown,60
Tina,... (6 Replies)
Hi All,
I am looking to join two files where column 1 of file A matches with column 1 of file B and column 5 of files A matches with column 2 of file B. After joining the files based on above condition, out should contain entire line of file A and column 3, 4 and 5 of file B.
Here is sample... (8 Replies)
Discussion started by: angshuman
8 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)