Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

Re^3: s// All Files In Directory

by aaron_baugher (Curate)
on Apr 02, 2012 at 20:00 UTC ( #963106=note: print w/replies, xml ) Need Help??

in reply to Re^2: s// All Files In Directory
in thread s// All Files In Directory

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.

Replies are listed 'Best First'.
Re^4: s// All Files In Directory
by perl.j (Pilgrim) on Apr 02, 2012 at 20:39 UTC
    So perl -p -i -e 's/5/6/g' will do what I want?

      No. You have to add the file names you want to work with after the command. In your case you want to work with all files, so append an asterisk (*). Also, add a file extension to 'i' if you want to create a backup:

      perl -pi.bak -e 's/5/6/g;' *

      ...will create a copy of each file with a .bak extension before performing the search/replace. If you only want to affect certain files, name them explicitly, or use glob patterns. For instance, the following will only work on files with a .txt extension:

      perl -pi -e 's/5/6/g;' *.txt
        That depends entirely upon the shell. Bash will turn *.txt into a list of files. cmd.exe will not.

        This doesn't seem to be working...

        Can't open *: Invalid argument.


Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://963106]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others scrutinizing the Monastery: (2)
As of 2018-02-21 17:49 GMT
Find Nodes?
    Voting Booth?
    When it is dark outside I am happiest to see ...

    Results (285 votes). Check out past polls.