1 path=':/bin:/tmp::/:.:/no/such/dir:.' 2 path='/bin:/tmp:/:/no/such/dir' 3 path='/bin:/tmp:/:/no/such/dir' 4 path='/bin':'/tmp':'/':'/no/such/dir' 5 path='/bin':'/tmp':'/':'/no/such/dir' 6 path_/usr/xbin=/opt/xbin/ 7 paths=/bin /tmp / /no/such/dir /opt/xbin 8 PATHS=/BIN /TMP / /NO/SUCH/DIR /OPT/XBIN 9 The answer is 42 10 dirname of 'a/b/c def a.b.c a.b/c a a.a .gitignore a a.a' is 'a/b . . a.b . . . . .' 11 basename of 'a/b/c def a.b.c a.b/c a a.a .gitignore a a.a' is 'c def a.b.c c a a.a .gitignore a a.a' 12 suffix of 'a/b/c def a.b.c a.b/c a a.a .gitignore a a.a' is 'c b/c a gitignore a' 13 root of 'a/b/c def a.b.c a.b/c a a.a .gitignore a a.a' is 'a/b/c def a.b a a a a a' 14 exit status 0 15