Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

s// All Files In Directory

by perl.j (Pilgrim)
on Apr 02, 2012 at 19:26 UTC ( #963094=perlquestion: print w/ replies, xml ) Need Help??
perl.j has asked for the wisdom of the Perl Monks concerning the following question:

Hello!

So here is my problem: I want to go through all of the file in a directory, and s/5/6/.

How can I open all of the file in the directory, and substitute all of the 5s for 6s?

--perl.j

Comment on s// All Files In Directory
Download Code
Re: s// All Files In Directory
by Anonymous Monk on Apr 02, 2012 at 19:34 UTC
Re: s// All Files In Directory
by Happy-the-monk (Abbot) on Apr 02, 2012 at 19:37 UTC

    How can I open all of the file in the directory, and substitute all of the 5s for 6s?

    perldoc perlrun yields the answer to your question. Have a look for -pi.

    Cheers, Sören

      I'm not too good with the command line (I'm a Windows guy :-). So in what syntax would I use -pi?
      --perl.j

        Learn to be good with the command line. Being saddled with Windows is no excuse; if you can't stand the Windows command line (I can't), install Cygwin.

        -p process line-by-line and print the results -i operate on files in place -e execute the following code Hence: perl -p -i -e 's/foo/bar/g' *

        Aaron B.
        My Woefully Neglected Blog, where I occasionally mention Perl.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: perlquestion [id://963094]
Approved by Corion
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (9)
As of 2015-07-06 06:04 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 (70 votes), past polls