murex Shell Docs

Command Reference: bexists

Check which builtins exist


bexists takes an array of parameters and returns which commands have been compiled into murex. The ‘b’ in bexists stands for ‘builtins’


bexists command... -> <stdout>


» bexists: qr gzip runtime config
    "Installed": [
    "Missing": [


This builtin dates back to the start of murex when all of the builtins were considered optional. This was intended to be a way for scripts to determine which builtins were compiled. Since then runtime has absorbed and centralized a number of similar commands which have since been deprecated. The same fate might also happen to bexists however it is in use by a few modules and for that reason alone it has been spared from the axe.

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Last built on Mon Feb 13 09:18:06 UTC 2023 against commit f339958f33995895c1d997efcdbb8408d2c8d45f8b5f934.

Current version is which has been verified against 13950 tests cases.