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'This example uses the SHELL function to execute three OS/2 commands.
 
CLS
ON ERROR GOTO ErrHandler
Ext$ = CHR$(34) + " EXE" + CHR$(34)
'The child process does: DIR | FIND " EXE" | SORT
Child$ = "dir | find " + Ext$ + " | sort"
ProcessID = SHELL(Child$)
PRINT "Process ID is: ProcessID"
END
 
ErrHandler:
    SELECT CASE ERR
        CASE 73
            PRINT : PRINT "You cannot use the SHELL function in DOS."
        CASE ELSE
    END SELECT
    END