I though I knew grep, but maybe not.
I want to find all lines in a file ending with ':' If I run
grep :$ ~/greptester.txt
but to my surprise, it gives no results. Sometimes I confuse '^' and '$', having to guess which is begin and which is end of line, but I checked and $ is indeed the end of a line.
After much screwing around, I accidently discovered that running
grep :.$ ~/greptester.txt
does give the expected results. Why?
Here is the text file:
test line one 1 line with a colon: ignore this line 3456 some stuff: cat: meow; dog: bark; horse: four (4) legs. goat, 7 elephants
This happens both on Ubuntu and on a Windows machine with Cygwin.