bash - increment variable in a string in shell script

Question

I have a string which comes from a variable I want to increment it. how can i do that using shell script?

this is my input which comes from a variable:

abc-ananya-01

output should be:

abc-ananya-02

Answer 1

It is shorter:

a=abc-lhg-08
echo ${a%-*}-`printf "%02d" $((10#${a##*-}+1))`
abc-lhg-09

Even better:

a=abc-lhg-08
printf "%s-%02d
" ${a%-*} $((10#${a##*-}+1))
abc-lhg-09