anyNA                   Backport of anyNA
dir.exists              Backport of dir.exists
endsWith                Backport of endsWith
file.info               Backport of 'file.info'
file.mode               Backports of wrappers around 'file.info'
hasName                 Backport of hasName
lengths                 Backport of lengths
startsWith              Backport of startsWith
strrep                  Backport of strrep
trimws                  Backport of trimws
