How can I check the last character in a string in bash?

Question

I need to ensure that the last character in a string is a /

x="test.com/"

if [[ $x =~ //$/ ]] ; then
        x=$x"extention"
else
        x=$x"/extention"
fi

at the moment, false always fires.

Answer 1

Like this, for example:

$ x="test.com/"
$ [[ "$x" == */ ]] && echo "yes"
yes

$ x="test.com"
$ [[ "$x" == */ ]] && echo "yes"
$ 

$ x="test.c/om"
$ [[ "$x" == */ ]] && echo "yes"
$ 

$ x="test.c/om/"
$ [[ "$x" == */ ]] && echo "yes"
yes

$ x="test.c//om/"
$ [[ "$x" == */ ]] && echo "yes"
yes