Chapter 6. Commands

Revision History
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  • In “For”, In "[NO]UNDEF", changed a note to reflect that NOUNDEF no longer applies to an undefined FOR control variable.

  • In [NO]UNDEF”, In "[NO]UNDEF", changed a note to reflect that NOUNDEF no longer applies to an undefined FOR control variable.

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  • In “ZSHOW Information Codes”, add DEXA, GLB, JNL, MLK, PRC, TRX, ZAD, JOPA, AFRA, BREA, MLBA and TRGA in ZSHOW Information Codes table; add actions to the ZSHOW "B" output description

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  • In “Key Words in VIEW Command, added the LINK keyword and an example for TRACE.

  • In “ZLink”, added the description of recursive relink.

  • In “ZSHOW Information Codes”, added the description of ZSHOW "R" and removed the description of ZSHOW "C".

  • In “Close”, added information for closing a listening LOCAL socket.

  • In “Job”, added information about using DETACHed sockets in INPUT, OUTPUT, and ERROR Processmarameters.

  • Moved the contents of SET * under SET and KILL * under KILL.

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This chapter describes M language commands implemented in GT.M. All commands starting with the letter Z are GT.M additions to the ANSI standard command set. The M standard specifies standard abbreviations for commands and rejects any non-standard abbreviation. Behavior of I/O commands including OPEN, USE, READ, WRITE, and CLOSE is described in Chapter 9: “Input/Output Processing.

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