Unix homework

Discussion in 'Green Room' started by loppdawg69, May 14, 2002.

  1. loppdawg69

    loppdawg69 Guest

    ok i have some question for my unix homework if you know Unix give me an IM at NateDavv68
     
  2. loppdawg69

    loppdawg69 Guest

    here are the questions for ya...im stumped

    1)the command "dirname path" treats path as a pathnameand writes to the standard output the path prefix, that is everything up to but not including the last component. thus "dirname a/b/c/d" write a/b/c to standard output. If path is simple filename (has no / characters), then dirname writes a . to standard output. Implement "dirname" as a Korn Shell function. Make sure that it behaves sensibly when given values of path such as /.

    2)implement the basename utility, which writes the last component of its pathname argument to standard output, as a Korn Shell function. For example

    basename a/b/c/d

    writes d to standard output.

    3) The UNIX basename utility has an optional third argument. If you type suffix of path that is identical to suffix. For example

    $ basename src/shellfiles/prog.sh .sh
    prog
    $ basename src/shellfiles/prog.sh .c
    prog.sh

    add this feature to the function you wrote for problem 2.