Manual:$wgShellboxShell

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DjVu: $wgShellboxShell
The POSIX-compatible shell to use when running scripts.
Introduced in version:1.42.0 (Gerrit change 979483; git #497efa4e)
Removed in version:still in use
Allowed values:(string) or null
Default value:'/bin/sh'

Details[edit]

The POSIX-compatible shell to use when running scripts. This is used by some media handling shell commands.

If $wgShellboxUrls is configured, this path should exist on the remote side. On Windows this should be the full path to bash.exe, not git-bash.exe.