Dear All, Many thanks for all your kind suggestions on my request. I solved my issues with the command "Test [0-9.]+".
Regards, MadYuv On Tue, Dec 20, 2011 at 7:55 PM, Dermot <paik...@gmail.com> wrote: > On 20 December 2011 13:45, Saravanan Murugaiah > <saravanan.muruga...@gmail.com> wrote: > > Dear All, > > Hello > > > I am a learner in Perl and this is my first post in this group. I need to > > search a word "Test 1.2.1" in my file. I am using "$_ =~m/Test \d+", but > it > > searched only "Test 1" not the full content. I need to check whether it > is > > "Test 1" or "Test 1.2" or "Test 1.2.1". Kindly help me in this regard > > Your search expression says match the work 'Test' then some literal > whitespace the any number of digits. But you have not accounted for > the periods/dots/full stops. > I think an regular expression like this would help. > > /test\s+\d+(?=\.\d+)*/i > > /s+ matches whitespace including tabs > ?= means look ahead from the match just found EG: 'Test 1' and see if > you can find a literal . followed by one or more digits. The * mean > zero or more times. > the i flags means make the search case-insensitive. > > Have a look at perldoc perlretut > (http://perldoc.perl.org/perlretut.html) for more tips. > Good luck, > Dermot. >
