How to make grep only match if the entire line matches?
Solution 1:
grep -Fx ABB.log a.tmp
From the grep man page:
-F, --fixed-strings
Interpret PATTERN as a (list of) fixed strings
-x, --line-regexp
Select only those matches that exactly match the whole line.
Solution 2:
Simply specify the regexp anchors.
grep '^ABB\.log$' a.tmp