From owner-freebsd-questions  Mon Dec 17  3:44: 1 2001
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Date: Mon, 17 Dec 2001 22:43:44 +1100
From: Edwin Groothuis <edwin@mavetju.org>
To: rene@xs4all.nl
Cc: questions@freebsd.org
Subject: Re: /bin/sh script to walk through a filetree? [shell, example, file, directory, tree]
Message-ID: <20011217224344.M724@k7.mavetju.org>
References: <20011217122028.K21241@xs4all.nl>
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In-Reply-To: <20011217122028.K21241@xs4all.nl>; from rene@xs4all.nl on Mon, Dec 17, 2001 at 12:20:28PM +0100
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On Mon, Dec 17, 2001 at 12:20:28PM +0100, rene@xs4all.nl wrote:
> Hi. I need to do 'something' with all or some files in a directory tree. Can
> someone perhaps point me to a skeleton example that shows me how to walk
> recursively through a filetree, listing all files/directories in it?

The easiest way is: "find .".
To distinguish between files and directories: "find . -type f" and
"find . -type d".
To do something with it, if the argument list isn't becoming too
big, is to pipe it through xargs:
"find . -type f | xargs rm" to remove all the files.

Now a little bit more difficult with recursion:

#!/bin/sh

=============================
go ( ) {
        local DIR   
        local entry

        DIR=$1 

        echo "now in $DIR"
        cd "$DIR"

        for entry in *; do
                if [ -d "$entry" ]; then
                        go "$DIR/$entry"
                fi
                if [ -f "$entry" ]; then
                        echo "File $entry"
                fi
        done
        cd ..
        echo "back to .."
}

go .
=============================

good luck

Edwin
-- 
Edwin Groothuis   |              Personal website: http://www.MavEtJu.org
edwin@mavetju.org |           Interested in MUDs? Visit Fatal Dimensions:
------------------+                       http://www.FatalDimensions.org/

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