I need some help in setting the correct pattern for grep. I need to find all occurrences of
pattern where line may have leading space(s). For example: In the following file:
1. No pattern recognized. 2. Pattern to be recognized 3. Pattern to be recognized here also 4. pattern with only one leading space
I would like to grep only lines 2,3 and 4. The line numbers are just for the reference.
So far I have tried the following:
grep -i '^ [[:blank:]]pattern', but it returns only line 4.
grep -i '[[:blank:]]pattern' returns 1,3 and 4.
grep -i '^[[:blank:]]pattern' returns 1,3 and 4.
-- Mike P.S. If this is not the appropriate forum, then please guide me accordingly.