Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Re: doing a search and replace on a large file

by graff (Chancellor)
on Apr 15, 2004 at 02:02 UTC ( #345280=note: print w/ replies, xml ) Need Help??


in reply to doing a search and replace on a large file

Most of the solutions above are fine -- especially hardburn's one-liner (that one got my ++!) -- but folks who know about unix command-line tools know that this is usually just a job for the "grep" command:

grep 'pattern to be kept' old.file > new.file
Of course, perl offers so much that "grep" can't do: more powerful regexes, support for multiple character encodings, and liberation from the old "every record must be just one line of text" mind-set. How about a Perl version of grep?

Well, I'm sure I'm not the only who has done this -- I just couldn't stop myself... Here it is: grepp -- Perl version of grep (I wrote it a year or so ago, have been using it regularly on solaris, linux and macosx -- should work fine on ms-windows -- and finally got around to posting it here).


Comment on Re: doing a search and replace on a large file
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://345280]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (8)
As of 2014-12-21 10:50 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (104 votes), past polls