Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Re: how to find common and not common lines in 2 files?

by misc (Pilgrim)
on Aug 21, 2007 at 21:45 UTC ( #634199=note: print w/ replies, xml ) Need Help??


in reply to how to find common and not common lines in 2 files?

Since you did say you started with perl a few weeks ago,
I'd like to give you just a hint.
Why don't you read the second file line by line and ...

Besides, as this was your question, you could find common and uncommon keys of two hashes by using a foreach loop, iterating over the keys of hash a and testing if it's present in hash b.

The hash category in perlfunc should also help you.
Did you miss exists ?

michael


Comment on Re: how to find common and not common lines in 2 files?

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://634199]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (13)
As of 2015-07-28 16:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (258 votes), past polls