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PHP uses argc as a count of arguments and argv as an array containing the values of the arguments. [ 4 ] [ 5 ] To create an array from command-line arguments in the -foo:bar format, the following might be used:
It is guaranteed that argc is non-negative and that argv[argc] is a null pointer. By convention, the command-line arguments specified by argc and argv include the name of the program as the first element if argc is greater than 0; if a user types a command of "rm file", the shell will initialise the rm process with argc = 2 and argv = {"rm ...
Here the argc and argv are defined exactly like they are in the C main function prototype; i.e., argc indicates the length of the argv array-of-strings. The optstring contains a specification of what options to look for (normal alphanumerals except W ), and what options to accept arguments (colons).
.text.globl _start _start: # _start is the entry point known to the linker xor %ebp, %ebp # effectively RBP := 0, mark the end of stack frames mov (%rsp), %edi # get argc from the stack (implicitly zero-extended to 64-bit) lea 8 (%rsp), %rsi # take the address of argv from the stack lea 16 (%rsp, %rdi, 8), %rdx # take the address of envp from ...
export proc ~start () export proc ~start (int argc, ref array ref array char argv) This is analogous to the main function in the C and Java languages. Here argc contains the number of parameters passed on the command line and argv contains a reference to an array of argc + 1 strings (one string per positional parameter in order and a ...
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DIGITAL Command Language (DCL) is the standard command language adopted by many of the operating systems created by Digital Equipment Corporation.DCL had its roots in IAS, TOPS-20, and RT-11 and was implemented as a standard across most of Digital's operating systems, notably RSX-11 and RSTS/E, but took its most powerful form in VAX/VMS (later OpenVMS).
Enjoy a classic game of Hearts and watch out for the Queen of Spades!