Re: [PATCH net] selftests: openvswitch: Use bash as interpreter

Hello:

This patch was applied to netdev/net.git (main) by Jakub Kicinski kuba@kernel.org:

On Mon, 17 Jun 2024 09:28:33 +0100 you wrote:

openvswitch.sh makes use of substitutions of the form ${ns:0:1}, to obtain the first character of $ns. Empirically, this is works with bash but not dash. When run with dash these evaluate to an empty string and printing an error to stdout.

# dash -c 'ns=client; echo "${ns:0:1}"' 2>error # cat error dash: 1: Bad substitution # bash -c 'ns=client; echo "${ns:0:1}"' 2>error c # cat error

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Here is the summary with links: - [net] selftests: openvswitch: Use bash as interpreter https://git.kernel.org/netdev/net/c/e2b447c9a1bb

You are awesome, thank you!