Hi Mikael, I forgot to mention: Use write/lines to write the results of my previous example back to file: write/lines %filtered-log.txt result Elan At 02:33 AM 11/29/99 +0100, you wrote: >I've just started out with some REBOL programming and the first task I was >planning to solve is this: > >I got a backup log that I want to filter out all rows that match a set of >strings. > >1. Open a text file >2. Compare every line with all strings. And if match delete row. >3. Write file back to disk. > >I've got a little bit of code doing this with one match string today :-) But >I'm not going to show you how I did :-) Ugly code... I believe. > >Thanks :-) > >-- > Mikael Östergren > [EMAIL PROTECTED] > mob: +46 (70) 555 4431 > fax: +46 (8) 5981 5932 > voice box: +46 (8) 5981 5932 > > >