It would seem Chris h, on Tue, Nov 18, 2008 at 06:21:02PM -0500, wrote: > Greets: > > Small problem and was wondering is some one can help. I have tabular data that > is separated by spaces and want to convert it to csv format. I did some > digging and found the necessary sed scripts to convert from cvs to space > delimited text but not the other way around. > > sed -e :a -e 's/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/;ta' > ref: http://student.northpark.edu/pemente/sed/sedfaq4. You could also try the tr command: tr '\t' ',' < infile > outfile # will convert all tabs to commas. -Ross