roland hellström wrote: > > Indeed this is a chalmers student. The purpose of asking > though is to learn it, because I find it very hard to learn > without seeing an example of it. > Thx for the reply it seemed to work well :) Although it would > be interesting to see if this could be done with the sed > command somehow? > Thx in advance > Then let me help you think it out: Given a text file with this data: 1.1,3.19e-4 1.2,3.05e-3 10.5,9.14e-8 <- I'm guessing this was suppose to be scientific not Convert to a text file: 1,1 & $3,19 \cdot 10^{-4}$\\ 1,2 & $3,05 \cdot 10^{-3}$\\ 10,5 & $9,14 \cdot 10^{-8}$\\ Look for the pattern match ups: 1.1,3.19e-4 1,1 & $3,19 \cdot 10^{-4}$\\ 1.2,3.05e-3 1,2 & $3,05 \cdot 10^{-3}$\\ 10.5,9.14e-8 10,5 & $9,14 \cdot 10^{-8}$\\ It looks like: 1) decimals converted to commas 2) commas converted to " & " 3) "e" converted to " \cdot 10^{<>}$\\" 4) <> substituted for whatever comes after the "e" Now if you convert decimals to commas BEFORE you convert commas to " & " then you will have garbage, so you need to convert commas to " & " first, then decimals to commas, then apply the conversion w/ substituion. Substitution is handled with the \(\) operator like such: echo "this is a test" | sed -e 's/\(.*\) is a \(.*\)/\2 is NOT a \1/' Will output: "test is NOT a this" Can be done in 3 steps, sed can take multiple operations if you separate them with ; <snip mangled thread> PS Fix your mail client to post in plain text and put your reply text at the bottom of the email instead of the top. ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof. _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos