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Perl combine multiple map statements

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# 1  
Old 08-05-2014
RedHat Perl combine multiple map statements
I have a file like

Code:
file.
file.TODAY.THISYEAR
file.TODAY.LASTYEAR

I want to substitute the words in caps with their actual values so that output should look like
Code:
file.140805
file.140805.2014
file.140805.2013

For this I am reading the file line bye line in an array and using multiple map statements for substitution, as below
Code:
@files = map { $_ =~ s/\.$/\.$TODAY/g; $_ } @files;
@files = map { $_ =~ s/TODAY/$TODAY/g; $_ } @files;
@files = map { $_ =~ s/THISYEAR/$THISYEAR/g; $_ } @files;
@files = map { $_ =~ s/LASTYEAR/$LASTYEAR/g; $_ } @files;

can anyone suggest how can I combine these multiple map statements in one

PS: answers only in perl please

Thanks
Sam
# 2  
Old 08-05-2014
Quote:
Originally Posted by sam05121988
...For this I am reading the file line bye line in an array and using multiple map statements for substitution, as below
Code:
@files = map { $_ =~ s/\.$/\.$TODAY/g; $_ } @files;
@files = map { $_ =~ s/TODAY/$TODAY/g; $_ } @files;
@files = map { $_ =~ s/THISYEAR/$THISYEAR/g; $_ } @files;
@files = map { $_ =~ s/LASTYEAR/$LASTYEAR/g; $_ } @files;

can anyone suggest how can I combine these multiple map statements in one
...
Code:
$
$ perl -le '@files = qw (file. file.TODAY.THISYEAR file.TODAY.LASTYEAR);
            $TODAY = "140805"; $THISYEAR = "2014"; $LASTYEAR = "2013";  # should not be hard-coded
            foreach $i (@files) { print $i }
            @new_files = map { $_ =~ s/\.$/.$TODAY/;
                               $_ =~ s/\.TODAY\.THISYEAR/.$TODAY.$THISYEAR/;
                               $_ =~ s/\.TODAY\.LASTYEAR/.$TODAY.$LASTYEAR/; $_
                             } @files;
            print "==========================";
            foreach $i (@new_files) { print $i }
           '
file.
file.TODAY.THISYEAR
file.TODAY.LASTYEAR
==========================
file.140805
file.140805.2014
file.140805.2013
 
$
$

This User Gave Thanks to durden_tyler For This Post:
sam05121988
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