Get last field using awk substr

Question

I am trying to use awk to get the name of a file given the absolute path to the file.
For example, when given the input path /home/parent/child/filena

Answer 1

Another option is to use bash parameter substitution.

$ foo="/home/parent/child/filename"
$ echo ${foo##*/}
filename
$ foo="/home/parent/child/child2/filename"
$ echo ${foo##*/}
filename