tail (basename) of 'a/b/c' is 'c'
tail (basename) of 'def' is 'def'
tail (basename) of 'a.b.c' is 'a.b.c'
tail (basename) of 'a.b/c' is 'c'
tail (basename) of 'a' is 'a'
tail (basename) of 'a.a' is 'a.a'
tail (basename) of '.gitignore' is '.gitignore'
tail (basename) of 'a' is 'a'
tail (basename) of 'a.a' is 'a.a'
tail (basename) of 'trailing/' is ''
exit status 0