How can I use sed to replace a ctrl character such as 'new line' (\0a) to something else? Or any other good command can do this job?
Thanks,
Hillxy (5 Replies)
Hi all,
Suppose I have a file with the contents below, and I only want to print words %S_ then | sort -u.
------------------------------
The %S_MSG that starts with '%.*s' is too long. Maximum length is %d.
The %S_MSG name '%.*s' contains more than the maximum number of prefixes. The... (5 Replies)
Hi everyone
I have file1 contains:
'7832'
' 8765
6543
I want a sed command that will format as:
'7832' , '8765' , '6543'
I tried
sed -e s/\'//g -e 's/^*//;s/*$//' file1 > file2
sed -e :a -e '$!N; s/\n/ /; ta' file2
which gives: 7832 8765 6543
I need some help to continue with... (5 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet able... (0 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet... (3 Replies)
Hi,
I'm trying to replace a range of characters by their position in each line by spaces.
I need to replace characters 95 to 145 by spaces in each line.
i tried below but it doesn't work
sed -r "s/^(.{94})(.{51})/\ /" inputfile.txt > outputfile.txt
can someone please help me... (3 Replies)
I have several files in a directory that look like this:
jacket-n r
potential-n -
outcome-n f
reputation-n b
I want to replace the characters in the second column with certain numbers. For instance, I want the letters 'f', 'r' and 'b' in the second column to replaced with 0 and I want the... (1 Reply)
Hi,
I hope you can help me out please?
I need to replace from character 8-16 with AAAAAAAA and the rest should stay the same after character 16
gtwrhtrd11111111rjytwyejtyjejetjyetgeaEHT
wrehrhw22222222hytekutkyukrylryilruilrGEQTH
hrwjyety33333333gtrhwrjrgkreglqeriugn;RUGNEURGU
... (4 Replies)
Hello,
I have some data that looks like the following,
> <SALTDATA> (OVS0199262)
HCl
> <IDNUMBER> (OVS0199262)
OVS0199262
> <SUPPLIER> (OVS0199262)
TimTec
> <EMAIL> (OVS0199262)
info@timtec.net
> <WEBSITE> (OVS0199262)
http://www.timtec.net
I need to remove the data in... (3 Replies)
Hi,
Im using sed on an AIX machine. I am trying to change the 137-139 characters if they are a ' 36'/'000' to a '036'. The positions that need to be changed are fixed.
the source data that I have is$cat v.txt
4000422985400050462239065593606500000007422985707771046154054910075641MC0318AMWAY... (9 Replies)
Discussion started by: dsid
9 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)