Bang prefixing to reverse default actions
Some builtins support a bang prefix, !, which provides a shorthand negative action to default behavior. For example, set defines a variable where as !set will undefine a variable.
Sometimes the shortcut will be logical, like a not operator, as is the case with and where typically each result has to equal true normally or false if used in !and.
Sometimes the shortcut will be more philosophical, such as with config where normal operations is to query or set configuration but !config resets the configuration to defaults (thus operating the same as config default).
Please read the respecting commands doc for details on whether it supports a bang prefix and what the behavior of that prefix is.
! (not): Reads the STDIN and exit number from previous process and not’s it’s conditionand: Returns true or false depending on whether multiple conditions are metconfig: Query or define murex runtime settingsor: Returns true or false depending on whether one code-block out of multiple ones supplied is successful or unsuccessful.set: Define a local variable and set it’s valueThis site's content is rebuilt automatically from murex's source code after each merge to the master branch. Downloadable murex binaries are also built with the website.
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.