On Wed, 2006-07-26 at 09:27 +0000, Xiaoshen Li wrote: > Dear All, > Thank you very much for all your responses. I am sorry. My file is a > little different now. It is like following: > > 1 data_34.dat pre= -7872.11914060 post= -7812.80517600 diff= 59.31396460 > 2 data_5.dat pre= -7986.76147466 post= -7926.94091800 diff= 59.82055666 > 3 data_16.dat pre= -8117.66357420 post= -8057.25097700 diff= 60.41259720 > 4 data_36.dat pre= -7628.28979490 post= -7564.08691400 diff= 64.20288090 > 5 data_18.dat pre= -8145.31860358 post= -8078.61328100 diff= 66.70532258 > > How can I use regular expression to get: > data_34.dat > data_5.dat > data_16.dat > .. > > Thank you very much. I greatly appreciate it.
:%s/^[0-9]\+\s\+\([^ ]\+\).*$/\1/g Should work.
