First File format would be as below
Second File format would be as below
I find one way to differentiate is count the _ in filename. is there any other option.
Hi All,
I'm a rookie using HPUX and I know this is going to sound like a bonehead question, but when I list the contents of a directory, how can I determine which objects are files and which are folders? I'm using the ll and ls commands to lists the contents. So far I've been determining the... (6 Replies)
I have to read a complete folder and if it is a file older that 7 days I have to copy it elsewhere and if it is a folder nothing to make.
The way I do it:
for I in `find /home/. -name "*" -mtime +7`
do
cp -Rf $I /home/elsewhere/.
done
Am I okay with the way I want to do it?
Help... (3 Replies)
Hi All,
I am new to this unix stuff.I just have one doubt:suppose i have two tar files and sometimes it happens that when we just check these files from outside these two tar files look same
"Eg:
ls -lrt
drw-r--r-- 1 oasis logadmin 37067 Apr 3 05:48 file1.tar
drw-r--r-- 1 oasis ... (7 Replies)
Hi,
I want to differentiate between a MS Word and Excel file in Unix (not by extension). The condition which we are currently checking for is the pattern "\320\317\021\340" within first 40 bytes of the file. However this format is same in all MS Office files. Can somebody tell me any special... (4 Replies)
Hi -
Here's the problem I'm encountering......My script logs in to remote FTP through password-less "sftp" and must get the list of sub-directories under a given path. I know many of the unix commands don't work in "sftp" login so I cannot know which one is a "directory" and which one is a... (2 Replies)
how to differentiate between two machine in Unix,whether it is logged in from local machine or from Server( both may be 2 or more).
Please help. (5 Replies)
Im using code below comparing and getting the diff of two files.
But what about multiple files? can you help me guys
diff -u file1 file2|sed -n '/^---/!{/^-/s/-//p}'
diff -ui file1 file2| sed -n '/^++/!{/^+/s/+//p}'
Example
File1:
aaa
bbb
ccc
ddd
File2:
bbb
eee (5 Replies)
Discussion started by: kenshinhimura
5 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)