sed is a unix command line tool. You can get various replacements using cygwin or others - if sed is a gnu utility there will likely be a windows binary for it, or you can reformulate your problem as a business problem rather than a technology issue - for example I need to remove all occurrences of a string from a file, preferably using the command line. I'd just use ctrl-h in write to do string replacement in a text file fwiw. Niall On Fri, May 15, 2009 at 6:35 AM, Mohammed Mehraj hussain < mhdmehraj@xxxxxxxxx> wrote: > hi all , > > i need to format a file using the sed command on windows . > > For example iam running this command in my comman prompt of win xp. > > D:\sample> sed "s/REM //" sample.sql > > 'sed' is not recognized as an internal or external command, > operable program or batch file. > > > > -- Niall Litchfield Oracle DBA http://www.orawin.info