Reference

bsd-csh(1) on Linux

The text 713429f70e59, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.

a shell (command interpreter) with C-like syntax

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bsd-csh(1) on Linux now