IBM Mainframe Forum

Hi
as a experienced linux developer I feel very dummy in the mvs-environment, eventhough I have been working for several years on this system

how can I find out where a certain command (cmd or TSO cmd) is fetched from? (it's the PATH-variable in Linux )

If you do a LISTA SYS ST H (from ISPF that would be TSO LISTA SYS ST H), you will get a list of allocated data sets. The STEPLIB DD statement contains the libraries searched for commands. However, SYSEXEC and SYSPROC may also be searched if the "command" is actually REXX or CLIST code.