Hi guys!
I'll make this short... Is there any good way to get the day number that first matches the Monday column from the cal command output with awk (or any other text manipulator commands) ?
I'm sorry if my question wasn't clear at all.
For example...
One cal output would be
$... (6 Replies)
Hello all,
I have an issue where I'm trying to change a date in a csv text file. The file contains lines that have several fields. For example
"John", "Smith","some_address","some_city","555-555-5555","11/11/1972"
"Joan","User","some_address","some_city","444-444-4444","12/02/1963"
The date... (6 Replies)
Hi,
I would like to convert the output from awk function to date and print on the screen.
Example : echo "Start Date: May 24 2010" | gawk -F": " '{print $2}'
Output : May 04 2010
I want this to be converted to 2010/05/24
Can i use date function here and how?
Thanks,
Deepika (2 Replies)
hi all,
i need to measure time difference between the time a process started, to the time it ended. i am assuming the following are the steps:
1. output 'date' command at start time
2. output 'date' command at end time
3. subtract the two
question is, how do i subtract the two time... (4 Replies)
I am using tar command to append daily database backups on tape. "tar --append " command help me to do this.
But tar --append command does not produce any output on stdout if it succeed.
I want the output for that appended command to a log file.
This log file should contain only the name of the... (0 Replies)
Hi All,
I have a file where I am converting newlines to comma separated values but I would like to append zero if the output is empty
Here is the command I am using
sed -n -e 'H;${x;s/\n/,/g;s/^,//;p;}' test1.txt
test1.txt will have comma seperated values but sometimes this file can be... (6 Replies)
Hello,
I'd like to write a monthly archive script that archives some logs. But I'd like to do it based on yesterday's date. In other words, I'd like to schedule the script to run on the 1st day of each month, but have the archive filename include the previous month instead.
Here's what I... (5 Replies)
Hi all,
Need an urgent help on the below scenario.
script:
awk -F","
'BEGIN { #some variable assignment}
{ #some calculation and put values in array}
END {
year=#getting it from array and assume this will be 2014
month=#getting it from array and this will be 05
date=#... (7 Replies)
current date command runs well
awk -v t="$(date +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
subtract 30 days fails
awk -v t="$(date --date="-30days" +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
awk command in hp unix subtract 30 days automatically from current date without date illegal option error... (20 Replies)
Experts,
I am writing a script and able to write only small piece of code and not able to collect logic to complete this task.
In input file have to look for name like like this (BGL_HSR_901_1AG_A_CR9KTR10) before sh iss neors. Record this (BGL_HSR_901_1AG_A_CR9KTR10) in csv file
Now have to... (0 Replies)
Discussion started by: as7951
0 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)