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char **ptr = array; is a pointer to a pointer to char like the below schema (ptr is argv, array is argc):
https://stackoverflow.com/questions/37098194/why-this-pointer-to-pointer-to-char-is-current
REF:https://www.quora.com/What-is-the-difference-between-char*-and-char
https://microchipdeveloper.com/tls2101:pointers-strings
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