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Questions tagged [argv]

Argument vector containing the arguments passed in from the command line when starting a program. Used in the main method, in conjunction with argc.

argv stands for arguments vector, and represents the arguments given to the program, or main, in a command-line. It is used in conjunction with , the number of arguments given to a program.

Keep in mind that the first value in argv contains the program name.

Example usage:

int main(int argc, char **argv) {
    /* Some code involving command-line arguments from argv */
}

Notable Stack Overflow questions:

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segmentation fault when using argv[1]

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Is it possible to write a C program that functions differently according to argv[0]?

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argc and argv in C

Suppose I have this example function int main(int argc, char** argv) { char* pChar = argv[2]; // Get the second argument "Word" char * pAdd = pChar + strlen(pChar); // 0 + 5 } and run by inputting ./fileName Hello World Since…
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I need my dictionary to be updated every time I amend it

I made a program which stores, updates, removes passwords for different accounts. However, although the program runs smoothly, whenever I restart the program, the PASSWORDS dictionary gets reset to the value in the program. Is there a way to update…
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Why command line argument -12345678969 is considered to be >1?

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argc, argv implementation c++

I have a problem with my main part of the program. I am trying to implement the arguments in main with argc, argv that will receive as input txt files. Also when I try to read the files I receive an error like : Variable i is used without being…
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Read a file using argv

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C programming and argv (pointer arithmetic)

So, I have been working on this simple block of code. I would like it to print, when I type in "./a.out -n" However, that is not working. I have been on stackoverflow trying to work on this, but no such luck. Any help would be appreciated. …
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learning Python the hard way argv and file

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Mysterious Issue in Replicating Binary files in C

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argv in C++ clearup

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How do i check argv[1] doesn't have any alphabetical characters?

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How to index through argv[1] in C?

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