perl -le '@arr=qw(5 52 523 5234 52341);foreach $a (@arr) { $a=join "_"
+,split //,$a,(length($a)>3)?3:length($a) if length($a) < 5 and length
+($a)>1;print $a}
'

[download]

output
5
5_2
5_2_3
5_2_34
52341


~suhail

In reply to Re: Check substitute digit by suhailck
in thread Check substitute digit by tart

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