Transfers control to a labeled statement in a command procedure.
Format
GOTO label
2 Parameter
label
Specifies a label of 1 to 255 alphanumeric characters that
appears as the first item on a command line. A label cannot
contain embedded blanks. When the GOTO command is executed,
control passes to the command following the specified label.
When you use a label in a command procedure, it must be
terminated with a colon (:). If you use duplicate labels,
control is always given to the label most recently read by DCL.
2 Examples
1.$ IF P1 .EQS. "HELP" THEN GOTO TELL
$ IF P1 .EQS. "" THEN GOTO TELL
.
.
.
$ EXIT
$ TELL:
$ TYPE SYS$INPUT
To use this procedure, you must enter a value for P1.
.
.
.
$ EXIT
In this example, the IF command checks the first parameter
passed to the command procedure; if this parameter is the
string HELP or if the parameter is not specified, the GOTO
command is executed and control is passed to the line labeled
TELL. Otherwise, the procedure continues executing until the
EXIT command is encountered. At the label TELL, a TYPE command
displays data in the input stream that documents how to use the
procedure.
2.$ ON ERROR THEN GOTO CHECK
.
.
.
$ EXIT
$ CHECK: ! Error handling routine
.
.
.
$ END:
$ EXIT
The ON command establishes an error-handling routine. If any
command or procedure subsequently executed in the command
procedure returns an error or severe error, the GOTO command
transfers control to the label CHECK.
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