remove double dots from a string and not the single dot using shell script

Question

I want to remove double dot from a string but not the single dot using shell script.

example string: a..b.c expected output: ab.c

I tried tr -d ".." but its removing all the dots. I tried tr -d "\.\." then also same result "abc".

Any suggestions would be appreciated.

Answer 1

You can replace multiple dots with none:

sed -E 's/\.\.+//g'