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Ctrl + C é abortado no UNIX :
In POSIX systems, the sequence causes the active program to receive a SIGINT signal. If the program does not specify how to handle this condition, it is terminated. Typically a program which does handle a SIGINT will still terminate itself, or at least terminate the task running inside it.
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Ctrl + V no UNIX :
Unix interactive terminals use Control-V to mean "the next character should be treated literally" (the mnemonic here is "v is for verbatim"). This allows a user to insert a literal Control-C or Control-H or similar control characters that would otherwise be handled by the terminal.
Isso está no shell e é apenas o padrão. Ao executar um programa, depende do programa o que eles fazem!