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34 lines
1.3 KiB
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34 lines
1.3 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:07:07}}
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{{DISPLAYTITLE:_COMMANDCOUNT}}
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The [[_COMMANDCOUNT]] function returns the number or arguments passed from the command line to the [[COMMAND$]] function.
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{{PageSyntax}}
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:{{Parameter|result&}} = [[_COMMANDCOUNT]]
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{{PageDescription}}
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* The function returns the number of arguments passed from the command line to a program when it's executed.
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* Arguments are spaced as separate numerical or text values. Spaced text inside of quotes is considered as one argument.
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* In C, this function would generally be regarded as 'argc' when the main program is defined as the following: '''int main(int argc, char *argv[])'''
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{{PageExamples}}
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''Example:'' The code below gets the number of parameters passed to our program from the command line with _COMMANDCOUNT:
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{{CodeStart}}limit = {{Cl|_COMMANDCOUNT}}
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{{Cl|FOR...NEXT|FOR}} i = 1 {{Cl|TO}} limit
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{{Cl|PRINT}} {{Cl|COMMAND$}}(i)
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{{Cl|NEXT}}
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{{CodeEnd}}
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: ''Explanation:'' If we start ''ThisProgram.exe'' from the command window with '''ThisProgram -l "loadfile.txt" -s "savefile.txt"''', the _COMMANDCOUNT would be 4, "-l", "loadfile.txt", "-s", "savefile.txt" command arguments passed to the program, which we could then read separately with COMMAND$(n).
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{{PageSeeAlso}}
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* [[COMMAND$]]
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* [[SHELL]]
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{{PageNavigation}}
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