hello @FBRM Many Thanks for your reply! The better expression is "Mask" I have find also this: http://bip.weizmann.ac.il/course/prog2/pm/Number_Format.html "From germany"

#!/usr/bin/perl

$number = '12586'
use Number::Format qw(:subs :vars);
  $THOUSANDS_SEP   = '.';
  $DECIMAL_POINT   = ',';
  $INT_CURR_SYMBOL = 'DEM';
  my $formatted = format_number($number);
  
  
format_picture($number, '## ### ### ###')
[download]

Gestion: How can i run this little stuff?

Greats,

@r