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Queries number of available bytes in error.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
Shell 7.5 Yes Yes Yes Yes No

MBS( "Shell.AvailableBytesError"; ShellRef )


Parameter Description Example value
ShellRef The reference number from the shell. $shell


Returns number or error.


Queries number of available bytes in error.
This allows you to check whether the child process wrote data in the error stream.

See also

Shell.AddEnvironment   -   Shell.AvailableBytesOutput

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