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My guess is this defaults to Bash, but would like to know for sure.


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2 Answers 2

up vote 7 down vote accepted

The default shell in busyboxy is ash

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It's not bash, is a one small file replacement for many small linux/unix utilities like sh and the files utilities

It's written with minimum size in mind and with embedded systems as target where space is a precious resource.

Check for more info:

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