Question

I have an application that for debugging purposes launches an editor with a log file. The editor was set to kedit. After a RedHat release update, we no longer had kedit. We simply changed the default editor and added an environment variable to let the user choose what editor they preferred.

The problem is that if the user sets the environment variable to an editor that does not exist or is not is their path, nothing happens. I will like to see if the editor exists, and if not notify them. Is there a way to do that in C++?

Answer 1

check out these functions in the manual

char *getenv(const char *name);

int stat(const char *path, struct stat *buf);

or open and fopen