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troubleshooting Question

Perl : read a file and output only distinct lines (eliminate all duplicates)

Avatar of cantthinkofone
cantthinkofoneFlag for United Kingdom of Great Britain and Northern Ireland asked on
Perl
4 Comments1 Solution742 ViewsLast Modified:
I have a file which has content something like the following:

01 A line of text
02 Another line of text
03 Yet another one
01 A line of text
04 More text
02 Another line of text
01 A line of text


How do I read this file and output, to another file, only the "unique" rows, ie:

01 A line of text
02 Another line of text
03 Yet another one
04 More text

is this easy to do in a Perl script?

As always, any help much apprfeciated!