Even simpler: use the special regex delimiter ' (single quote) to suppress interpolation:

#! perl
use strict;
use warnings;

my $string = 'i am us$ing moni$ka expressi$on';

$string =~ s'\$'\$'g;

print $string, "\n";

[download]

Output:

23:12 >perl 1483_SoPW.pl
i am us\$ing moni\$ka expressi\$on

23:14 >

[download]

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^3: How to replace '$' in strings by Athanasius
in thread How to replace '$' in strings by ravi45722

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