chat(8) on Linux
The text 600298a80dc4, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
Automated conversational script with a modem
Flags it lists
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-E -
-S -
-V -
-e -
-s -
-t -
-v