emit_error()

Name

emit_error() — emit an error-code (numeric) to the frontend

emit_error [error-code] [description]
echo description | emit_error [error-code]

emit_error() writes the error to stderr in the following format:

<acritoxinstaller backend error> error-code description

If no error-code and description is supplied then the error "255 unknown" is emitted.

emit_error() always returns non-zero, so that it can be used like this:

return non-zero, so you can use emit_error() like this:

some_function_call || emit_error 1 "Error!" || return