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  • how can you set argv[0] to both ./foo and dir/bar Commented Mar 2, 2015 at 16:34
  • @munjal007 I'm sorry if I was being unclear. I meant running the program twice: once as ./foo and once as dir/bar. argv[0] will be different for those two cases (in each case it'll be the same as the path you used). Commented Mar 2, 2015 at 16:39
  • @munjal007 That's assuming that you run it from the shell of course. The point is that you could set argv[0] to anything when you exec*() the program yourself. It's a convention of the shell to set argv[0] to the path that was used to start the program (and it's wise to do the same when you exec*() a program, since many programs inspect argv[0] and expect it to hold the path). Commented Mar 2, 2015 at 16:43