Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Re: Favourite One-liners?

by gellyfish (Monsignor)
on Jun 29, 2005 at 13:57 UTC ( #471024=note: print w/ replies, xml ) Need Help??


in reply to Favourite One-liners?

To be honest I rarely find myself doing a "pure perl" one liner more sophisticated than the occasional perl -pi -e's/something/somethingelse/g' *, however every once in a while something a little more complicated comes up and you know you've got to use different bits of the toolkit:

perl -MEmail::Folder -e'print $_,"\n" foreach sort map { $_->header("F +rom")} Email::Folder->new("mail/london_pm")->messages()' | uniq -c | +sort -n
Now I'm sure you could do this entirely as purely perl, but what would be the point (apart from proving that you can do it)? As it is the entire pipeline could be made shorter by piping through an additional sort before the uniq rather sorting in Perl (you can lose the map as well as the sort then). This is after all the point of having pipelines and filters and having a rich toolset.

/J\


Comment on Re: Favourite One-liners?
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://471024]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (7)
As of 2014-08-20 11:47 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (111 votes), past polls