All locally-installed software on the ECI computers is located under the tree rooted at /eci. Beneath /eci you will find directories for each package, and subdirectories beneath that contain the executables, man sections, libraries, etc.

For example, the latest-installed version of the perl distribution is installed in /eci/perl. Under there, you will find /eci/perl/bin, /eci/perl/lib, etc. The binaries for the perl executables are located in /eci/perl/bin, and that directory must be in your search path before you can execute perl.

For programs which have a single binary and a single man page, the binary is located in /eci/bin and the man page in /eci/man. You should have /eci/bin in your search path.

Each computer also has vendor-supplied software (for example, the vendor c compiler) installed in a vendor-specific place. You should consult the online /usr/man man sections on each system for information about these software packages.