strace /opt/bin/skype
execve("/opt/bin/skype", ["/opt/bin/skype"], [/* 80 vars */]) = -1 ENOENT (No such file or directory)
write(2, "strace: exec: No such file or di"..., 40strace: exec: No such file or directory
) = 40
exit_group(1)                           = ?