I have a question regarding the
sed operators. I have a big file which has the following set of lines repeated
Expression loweWallrhoPhi : sum=-6.97168e-09 Expression leftWallrhoPhi : sum=6.97168e-09 Expression lowerWallPhi : sum=-5.12623e-12 Expression leftWallPhi : sum=5.12623e-12 Expression loweWallrhoUSf : sum=-6.936e-09 Expression leftWallrhoUSf : sum=6.97169e-09 Expression lowerWallUSf : sum=-5.1e-12 Expression leftWallUSf : sum=5.12624e-12
I want to extract the value after the keyword
sum in each case into a separate file. Is it possible to do so at one go?