I’ve had a lot of success with pymarc for this.

-- 
Andrew Anderson, Director of Development, Library and Information Resources Network, Inc.
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On Aug 28, 2014, at 14:37, Schwartz, Raymond <[log in to unmask]> wrote:

> I need to automate this in a script.  As far as I can tell.  You cannot do this with MarcEdit.
> 
> -----Original Message-----
> From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Jane Costanza
> Sent: Thursday, August 28, 2014 2:33 PM
> To: [log in to unmask]
> Subject: Re: [CODE4LIB] Anybody know a way to add a MARC tag on-mass to a file of MARC records
> 
> MarcEdit is a free MARC editing utility.
> 
> http://marcedit.reeset.net/
> 
> Jane Costanza
> Associate Professor/Head of Discovery Services Trinity University San Antonio, Texas
> 210-999-7612
> [log in to unmask]
> http://digitalcommons.trinity.edu/
> http://lib.trinity.edu/
> 
> 
> On Thu, Aug 28, 2014 at 1:26 PM, Schwartz, Raymond <[log in to unmask]>
> wrote:
> 
>> Anybody know a way to add a MARC tag on-mass to a file of MARC 
>> records.  I need to add the tag 918 $a with the contents "DELETE" to 
>> each of the records.
>> 
>> Thanks in advance. /Ray
>> 
>> Ray Schwartz
>> Systems Specialist Librarian                         [log in to unmask]
>> <blocked::mailto:[log in to unmask]>
>> David and Lorraine Cheng Library               Tel: +1 973 720-3192
>> William Paterson University                         Fax: +1 973 720-2585
>> 300 Pompton Road                                        Mobile: +1 201
>> 424-4491
>> Wayne, NJ 07470-2103 USA
>> http://nova.wpunj.edu/schwartzr2/<
>> http://euphrates.wpunj.edu/faculty/schwartzr2/>
>>