basename - strip file name affixes

Basename  deletes  any  prefix ending in slash (/) and the suffix, if present in string, from string, and
       prints the result on the standard output.

       The -d option instead prints the directory component, that is, string up to but not including  the  final
       slash.  If the string contains no slash, a period and newline are printed.

       basename - strip file name affixes

/src/cmd/basename.cBASENAME(1plan9)

basename [ -d ] string [ suffix ]