The Dash shell, a POSIX-compliant derivative of the Almquist shell used as /bin/sh in Debian, Ubuntu and other Linux distributions

Dash is a with POSIX features and little more. It is derived from the Almquist shell , originally to serve as /bin/sh on Debian, and also used in Ubuntu and other derivatives and other Linux distributions. Dash is smaller and faster than Bash , but has fewer features.

Use this tag if your question is specifically about Dash. If your question is about Bourne/POSIX shells in general, use .

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