I did a search for this topic but I couldn't find it and I was sure I have seen something similar before (hard because I am not sure of the criteria for the keywords)
What I was looking for was to be able to echo a message to the screen from a bash.sh script at the same time logging it to a... (2 Replies)
Hello all!..
does anyone know the syntax to print to the screen and to a file?
Im using something like
AWK ....
print header |tee -a invalid_csv_file ;
END {..}
' invalid_csv_file="$invalid_csv_dir_file"
but no joy?
I get sh:... (2 Replies)
I want to output screen messages to a logfile when executing an automated script. I have tried the script and command to do this but with no luck.
Thanks,
Nicole (5 Replies)
I would like to use a terminal session to ssh to switches and routers. I need to capture data while logged into switches to a file I can email for troubleshooting.
I use termial to log into Cisco switch, run the sh tech command, and then sent the output to cisco. Is there a way to run a... (4 Replies)
Hi all,
I have a script that bulk loads thousands of lines of data. I need to log the output during the execution of the script.
I know I can redirect (">") the output to a file; however, I want the output going to both the screen and the log file.
I thought I could use pipe to pipe the... (10 Replies)
Is it possible to store all standard-out of a bash script and the binaries it calls in a log file AND still display the stdout on screen?
I know this is possible to store ALL stdout/stderr of a script to a single log file like:
exec 1>&${logFile}
exec 2>&1
But running a script with the... (3 Replies)
Hi,
I would need to log the whole screen ouput to a log file.
All Inputs from the Agent, all echo´s and DBMS Outputs from the PL/SQL.
Basicly everything what I can see during the run on the screen.
I tried it already with
#exec 2>$BASELOG/RUN.log
#exec 1>$BASELOG/RUN.log
#exec >... (1 Reply)
How can i print the output of a perl script on a unix console and redirect the same in a log file under same directory simultaneously ?
Like in Shell script, we use tee, is there anything in Perl or any other option ? (2 Replies)
c()
{
if something failed;then
echo "failed"
exit 1
fi
}
f()
{
functinona #if something failed call "c"
functionb #if something failed call "c"
}
f > log 2>&1 #put the log to file not print on the screen
I want all the stdout/stdrr to the log file... (3 Replies)
Discussion started by: yanglei_fage
3 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)