Hi!
here is my problem :
$ more file
yopyop:FIToB8df02f:10200:351:yoyo:/home/yopyop:/usr/bin/ksh
$grep yopyop file | sed s/FIToB8df02f/passe/
yopyop:passe:10200:351:yoyo:/home/yopyop:/usr/bin/ksh
$more file
yopyop:FIToB8df02f:10200:351:yoyo:/home/yopyop:/usr/bin/ksh
...when i... (1 Reply)
I am cating a file with passwords into another file. I want to replace the the password with **** and it is not working. Here is my command
cat testing | sed 's/`echo ${pass}`/*****/'>>out1
${pass} is the password that I want to replace before it goes into out1
Anyone know what I am... (1 Reply)
hi
I am using "sed" command to find and replace a text in a file.
if the searched string is in the last line with no newline character in the end, it doesn't retrive this line. What is the solution to this?
i am using sed as:
sed -e "s/abc/ABC/g" test.txt
where i am replacing abc with ABC (11 Replies)
I want to write the output of From_Date_Parm and To_Date_Parm to the target file. I want to write a script by passing the filename.
In my case the file is TransactionParams
I tried it through command line.
noofdays=TransactionParams
sed... (2 Replies)
for example i have the file that contain several line..and i want to swap the first word and the second word than i store it into new file..
on the command i wrote:
sed -e "s/^\(*\)\(*\)/\2\1/g" file > swapfile
i think its already correct...
but i got the error
sed: -e expression... (5 Replies)
Hi,
I used sed command to replace õ character.
sed -n '1,$s/õ/o/gp' inputfile > outputfile
The problem is there are 5 records in input file and 2 records has that õ character. So after using the sed command, in output file Iam getting only those records which has character õ replaced by o.... (2 Replies)
i use 'sed' with this syntax
" sed "/$lineerr/d" $fileerr > $fileerr"_Bak" && mv $fileerr"_Bak" $fileerr"
it's work to remove the line that have the word in $lineerr
but it also remove my last line in file too. - -"
my input File
$ cat fileerr.txt
xx|1111111111
xx|2222222222... (5 Replies)
Hi,
I have a file with data
demo_abc
demo abc
demo-abc
abc
Now i need to extract only abc from all the lines and print. i used the pattern /*$/ . Can any one help me how to extract text "abc" only. (5 Replies)
Hi
i am reading a tutorial on sed
below command was given in tutorial. i am not able to understand the working of below command also this command is now working in my enviroment.
$ sed -n '1~2p' alarm
sed: 1: "1~2p": invalid command code ~
$
need your assitance here (7 Replies)
I have tried to print the commands which are executed today from history file using sed command by putting the range but i am unable to get it.can anyone help with this is script.I am pasting the script below that i have tried .
today=$(date "+%F")
echo $today
yest=$(date --date="yesterday" ... (2 Replies)
Discussion started by: iosjsk
2 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)