Get last field using awk substr
Use the fact that awk splits the lines in fields based on a field separator, that you can define. Hence, defining the field separator to / you can say:
awk -F "/" '{print $NF}' inputas NF refers to the number of fields of the current record, printing $NF means printing the last one.
So given a file like this:
/home/parent/child1/child2/child3/filename/home/parent/child1/child2/filename/home/parent/child1/filenameThis would be the output:
$ awk -F"/" '{print $NF}' filefilenamefilenamefilename
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