Telling Where a Command is Executed

• The whence command is a Korn Shell feature that tells how a name would be interpreted by the shell: it detects commands and aliases, and searches your path.
• The type command is like whence -v and works in all shells on HP-UX and AIX. It works in ksh and sh on OSF1, SunOS, Solaris, SCO, A/UX, NCRSVR4, and LINUX, and it works in the NuTCracker development environment on Windows/NT.
• The which command can tell if a name is an alias or on your path; it cannot detect built-in commands. which is a program available in all shells on HP-UX, but may be a C shell feature only on other systems.
• The whereis command locates the source, binary and manual files for a program, searching a list of standard places.
• The what command searches a given file for SCCS identification information (Source Code Control System), such as what compiler was used to create it.
• The man command gives you help with a program, if the program has a man page.

On MPE you can use the :Help command to find where on your HPPATH a particular program or command file is located:

    :help qedit
    QEDIT.PUB.ROBELLE (Program file)