There is nothing wrong with the sed command, apart that it seems you want to do a global substitution, to change all occurrences:
Double check your $username var; echo it out to make sure it is what you think it is.
Also, note that the changed content will be output to stdout, unless you redirect it into a new file or use -i switch to edit in-place (redirection is safer).
I have a loop in a script that is given me an error but, when I do it on the command line it works perfectly. The sed statement has to use the variables from a file so the file is partitioned correctly. I am running on HP:
<Begin error>:
+ cat /u01/bteam/CNAM/1121/.partition
+ read line
+ +... (3 Replies)
Can anyone tell me ...on the below listed command
cat /mnt/winbox/list_measurement/ds1c/ds1_f.rome_27A03A 2>> error_log | sed -e '1,3d;s/^/27A03A,/' | sed -e "s#\(.*\)#\1 ,$(date +%Y-%m-%d)#g" > /SBS/ds1_f.rome_27A03A
The outcome is this:
,2005-08-29 Forestdale,3:02 am MON AUG 29,... (9 Replies)
Can someone help me "port" this to AIX sed?
sed '/nas/{n;s/true/false/}'
I know it doesn't like the ; but i don't know how else to do it.... never had to sed on an AIX box :D (7 Replies)
Hi All
I'm getting this error while executing a sed script
sed: 0602-404 Function /</ i\ File from New Cube: cannot be parsed.
sed "/</ i\ File from New Cube:
/>/ i\ File from Old Cube:" difference1.txt > Difference.txt
I've a file like this
< Y2008 Dec ..... .... ... 345
I want... (6 Replies)
Hello ,
I am trying to replace a word :: complete to Failed .
work: complete
Sed command which i am using is given below ::
sed s/work: complete/Failed/g temp1.txt > temp2.txt (Sed command is grabled if i use the above .. because of space which is there between work: and complete. I... (6 Replies)
Hi,
I am trying to use 3 sed statements in a shell script, but it get foll error.
sed : garbage after command.
If I use only two sed statements, the script works well.
Is there any restriction for sed usage or is there some catch which I am missing.
Sample Script is as follows :
... (3 Replies)
hi
i have following sed command
this replaces "** in filename1 with octal value 007 filename2
when i put it in script it wont work but it works from command line
my OS is sun OS
---------- Post updated at 06:38 PM ---------- Previous update was at 06:14 PM ----------
i... (10 Replies)
I can't get this code to work, could I get some help...
sed -i '' "s:${shLogpath1}${cell}:${shLogpath2}${cell}:g" test.txt
Any Ideas, I think I need to separate the variables some how? (2 Replies)
I'm trying to change a date in a couple of large files using SED. The problem is when I use the -n parameter, it doesn't actually change the file. When I leave out the -n, it sends the whole file to the screen, but it does appear to change it.
The problem is, these files are very large and it... (8 Replies)
Discussion started by: Drenhead
8 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)