I want to make an app in C++ for Linux terminal, but I don't know how to set the prefix. Like, when using homebrew, the prefix is brew <the command>. For my app, I want to be davd <the command>, how can I make this in C++?
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Remy Lebeau
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DBKK
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I think it's `alias` in shell, not related to C++. – Nimrod Dec 04 '21 at 05:38
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ok , but how do I set an alias ? @Nimrod – DBKK Dec 04 '21 at 05:40
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see https://tldp.org/LDP/abs/html/aliases.html – Nimrod Dec 04 '21 at 05:44
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Thx a lot for your help – DBKK Dec 04 '21 at 05:45
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1There is no magic, `brew` is just an executable/script/function. It is no different from `ls` or `git` or whatever. – Mat Dec 04 '21 at 08:37
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3Totally unclear what is asked! Is it about (re)name a file/executable? Create a (sym)link? Alias in the shell? Compile the executable directly with correct filename? Sorry... – Klaus Dec 04 '21 at 08:48
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does he not like `a.out`? – Fravadona Dec 04 '21 at 08:51
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The answer (probably) has multiple parts:
- Your application will have to parse the arguments given to it on the command line, which are available inside
int main (int argc, char *argv[]). There are many ways to do this. - The name of the executable is set by the compiler, so you have to let it know via the command line or your build configuration file.
- To be able to run an executable without specifying its path, its location must be listed in the $PATH environment variable. On linux, this is commonly done by putting user-built executables in
~/.local/bin(for your use only, ~ is your home directory) or/usr/local/bin(accessible to other users). It could be a symlink to the file in your build directory, manually copied there, or put there by your build system using an install target.
sigma
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