so in the wee hours of the morning, I found myself wondering about the wall(1) command¹ that writes text to the tty of all logged-in users.
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so in the wee hours of the morning, I found myself wondering about the wall(1) command¹ that writes text to the tty of all logged-in users. Then I was curious if the utility could determine whether the TTY user(s) had/hadn't been active, contemplating a re-write of the utility that checked for that first, providing an oasis of tranquility for the other terminals. Anyway, here's wonderwall(1)…
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