| fetcharg | fetch argument function |
| Syntax | fetcharg ( i : int ) : string
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| Description | The fetcharg function is used to access the i-th argument that has been passed to a program from the command line. For example, if the program is run from the Turing environment using
then fetcharg(2) will return "file2". If a program called prog.x is run under UNIX using this command:
the value of fetcharg(2) will similarly be "file2". The nargs function, which gives the number of arguments passed to the program, is usually used together with the fetcharg function. Parameter i passed to fetcharg must be in the range 0 .. nargs. The 0-th argument is the name of the running program.
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| Example | This program lists its own name and its arguments.
put "The name of this program is : ", fetcharg ( 0 )
for i : 1 .. nargs
put "Argument ", i, " is ", fetcharg ( i )
end for
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| Execute | |||||
| See also | nargs
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