Date:         Wed, 28 Jun 2000 11:32:14 -0700
Reply-To:     kmself@IX.NETCOM.COM
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         kmself@IX.NETCOM.COM
Subject:      Re: UltraEdit "Replace in Files"
Comments: To: Ray Pass <raypass@worldnet.att.net>
In-Reply-To:  <no.id>; from raypass@WORLDNET.ATT.NET on Wed, Jun 28,
              2000 at 10:07:18AM -0400
Content-Type: multipart/signed; micalg=pgp-sha1;
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Using Linux shell tools, bash/korn/posix shell script and shell tools.
These are available on Linux and Linux-like OSs, as well most pretenders
through compatibility kits such as Cygwin32, UWIN, MKS, and Microsoft's
rebranded Interix product.

    for file in *.SAS
    do
        # Replace strings in file $file, output to a temporary file,
        # move temporary to original if successful, else output error 
        # message to stderr.
        sed -e '/original-pattern/s//replacement-string/g' < $file > \
            $file.tmp && mv $file.tmp $file || \
            echo "`basename $0`: error processing $file" 1>&2
    done


...if the one-fell-swoop approach is too drastic for you, you can copy
the files to an archive before modifying them, or create a new working
set which you modify and test, then commmit.

Better yet, use file revision control such as RCS or CVS to manage your
changes -- including the ability to show what's changed between two
versions of a file.


On Wed, Jun 28, 2000 at 10:07:18AM -0400, Ray Pass wrote:
> Tom (original request below),
> 
> Now that we know why you're getting the results you're getting, the
> question becomes, how do you get what you want?  Here's one way, albeit a
> bit kludgy.  Can anybody do better?
> 
> 1) Note all the file extensions which would be undesirably included when
> looking for *.SAS, such as
> .SASv7bDAT, .SASv7bCAT.  You can use Windows Explorer and sort by file type.
> 
> 2) Temporarily rename all of these files so they will not have extensions
> starting with .SAS - like .XSASv7bDAT, .XSASv7bCAT for example.  If there
> are only a few, do it by hand.  If there are many, build a macro in SAS to
> do it.  Have the macro execute operating system commands to first get all
> the file names in a string (DIR) and then step through the string
> incrementally to do the renaming.
> 
> 3) Do the UltraEdit Replace in Files.
> 
> 4) Change the temporarily renamed files back to their original names with a
> revised version of the macro you built in step 2), or by hand if there are
> not many.
> 
> As I said, this is a bit kludgy, but it should work.  I'll bet there's a
> much more elegant way out there.  Anybody?
> 
> Ray
> 
> 
> Apologies if this seems off-topic, but I think it is important.  Recently
>  > I queried SAS-L about how to do a global "search & replace", covering an
>  > entire directory.  Several people steered me to UltraEdit, and its
>  > "Replace in Files" capability.  Well, I just tried to globally change a
>  > text string in "*.SAS" datasets (i.e. my programs) ... but the process
>  > seemed to be taking too long, so I aborted it.  I then found that, in
>  > addition to my SAS programs, UltraEdit was apparently going through ALL my
>  > files, in the given directory, whose extension *began* with SAS, i.e. my
>  > SAS v8 data and catalog files (*.SASv7bDAT, *.SASv7bCAT).  This is
>  > obviously undesired and extremely dangerous behavior!  Did I miss an
>  > option somewhere that would have restriced the search-and-replace to *.SAS
>  > datasets alone?  The version of UltraEdit I'm using is "UltraEdit-32
>  > Professional Text/HEX Editor, Version 7.10a".  Thanks,
> *------------------------------------------------*
> | Ray Pass, Ph.D.         voice: (914) 693-5553  |
> | Ray Pass Consulting      eFax: (914) 206-3780  |
> | 5 Sinclair Place                               |
> | Hartsdale, NY 10530    e-mail: raypass@att.net |
> *------------------------------------------------*
> 
> ------------------------------

-- 
Karsten M. Self <kmself@ix.netcom.com>         http://www.netcom.com/~kmself
  Evangelist, Opensales, Inc.                       http://www.opensales.org
   What part of "Gestalt" don't you understand?      Debian GNU/Linux rocks!
     http://gestalt-system.sourceforge.net/      K5: http://www.kuro5hin.org
GPG fingerprint: F932 8B25 5FDD 2528 D595  DC61 3847 889F 55F2 B9B0

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