Sorting on the last field of a line

Question

What is the simplest way to sort a list of lines, sorting on the last field of each line? Each line may have a variable number of fields.

Something like

Answer 1

awk '{print $NF,$0}' file | sort | cut -f2- -d' '

Basically, this command does:

1. Repeat the last field at the beginning, separated with a whitespace (default OFS)
2. Sort, resolve the duplicated filenames using the full path ($0) for sorting
3. Cut the repeated first field, f2- means from the second field to the last