perl leading zeros formatting sprintf
To format a number with leading zeros in Perl using the sprintf
function, you can use the %0Nd
format specifier, where N
is the total width of the number. Here's an example:
my $number = 42;
my $formatted_number = sprintf("%05d", $number);
print $formatted_number; # Output: 00042
In this example, %05d
specifies that the number should be printed with a total width of 5 digits, padded with leading zeros if necessary.
You can adjust the width by changing the number after the %0
in the format specifier. For example, %08d
will produce a number with a width of 8 digits:
my $number = 42;
my $formatted_number = sprintf("%08d", $number);
print $formatted_number; # Output: 00000042
This will pad the number with 6 leading zeros to make it 8 digits wide.