Shell :copying the content from one file to another

Shell Programming and Scripting
1

I have a log containing the below lines.
file1.log
-----------

module: 
module1
module10
module2
module002
module9
moduleRT100.2.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
moduleRT100.3.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

file2.log

module1
module10
module2
module002
module9

Now file2 has to be generated from file1 by eliminating all module: and moduleRT etc. Only module that are postfixed with number has to be copied to file2.log

Could anyone please help me in this regard

2

Try:

grep -vE '^module(:|RT)' infile > outfile