TSO commands, CLISTs, and REXX EXECs

Besides the ISPF-supplied line commands, you can also enter TSO commands, CLISTs, and REXX EXECs that use a fully qualified data set name as an operand. You can type over the field containing the data set name to enter commands that require more space than is provided in the Command field. ISPF determines the end of the command by scanning the Command field and the field containing the data set name from right to left. The first character found that differs from the original is considered to be the last character of the command. Therefore, it is best to enter a blank after the last character of your command if it extends into the field containing the data set name.

TSO commands, CLISTs, and REXX EXECs entered are invoked using the ISPF SELECT CMD service. Variable names starting with an ampersand (&) are evaluated by ISPF. If you want the underlying command processor to see the ampersand you must specify 2 ampersands. For example:

DEF NONVSAM(NAME(/) DEVT(0000) VOLUME(&&SYSR2))

Note: If the TSO command, CLIST, or REXX exec issues a return code greater than or equal to 8, processing stops and an error message is displayed.