I have one more query on this.

In following Environment File I am giving only values of parameters which would be replaced in properties file

DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>
[download]

[download]

Followin Properties File have other lines too which do not match those from environment files above.

#These are the properties for engineering
#We expect you to change them for your environment
#
#CustomerDatabase info
DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>

[download]

My objective is to replace values of properties file based on environment file at same time keeping non matching lines as it is. If I use the following code, duplicate lines will be printed for every line from environment file.

use strict;
use warnings;

my $envfile = "/root/env.properties"; 
my $file = 'input.txt'; # Or whatever

open my $env,  '<',  $envfile      or die "Can't read old file: $!";
open my $in,  '<',  $file      or die "Can't read old file: $!";
open my $out, '>', "$file.new" or die "Can't write new file: $!";

my @envFile = <$env>;
my @inFile = <$in>;

print "\nFile contents:";
print @envFile;

my $dbhost = '';
my $dbport = '';
my $dbschema = '';

foreach my $envline (@envFile){
    my $inLineCount = 0;
    foreach my $inline (@inFile){
        $inLineCount++;
        print "$inLineCount $inline";
        foreach my $DOMAIN_DB_CONN_STR ('FINANCE_DB_CONN_STR', 'MARKET
+ING_DB_CONN_STR') {
            if($envline =~/$DOMAIN_DB_CONN_STR=.*:1521:.*/ && $inline 
+=~/$DOMAIN_DB_CONN_STR=.*:1521:.*/){
                print "\nMatch";
                my $line = $inline;
                $line =~ s/$DOMAIN_DB_CONN_STR=.*:1521:.*/NUANCE_DB_CO
+NN_STR=$dbhost:$dbport:$dbschema/;
                print $out $line;
            } else {
                  print $out $line;
            }
        }
    }
}

[download]

Output would be 

#These are the properties for engineering
#We expect you to change them for your environment
#
#CustomerDatabase info
DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>


#These are the properties for engineering
#We expect you to change them for your environment
#
#CustomerDatabase info
DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>


#These are the properties for engineering
#We expect you to change them for your environment
#
#CustomerDatabase info
DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>

#These are the properties for engineering
#We expect you to change them for your environment
#
#CustomerDatabase info
DOMAIN=<value>
DOMAIN_TEST_DB_CONN_STR=<value>
DOMAIN_TEST_DB_USER=<value>
DOMAIN_TEST_DB_PSWD=<value>

[download]

Could you please let me know how to handle this?

Thanks in advance!!

In reply to Re^3: read the value of variable from environment file and set it to another properties file using perl script by vishallearningperl
in thread read the value of variable from environment file and set it to another properties file using perl script by vishallearningperl

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