ERR X0.4 (202203090401) Display error messages based on codes ERR is a tool to display various error codes or names from the command line. It is also a library with functions that can be used by other programs. Usage: ERR <n> Switches: /IO, /SYS, /RMS, /NET, /BP2, /NRJ, /CC, /FMS It is also possible to find codes based on symbol names. (Package source is MIM::DU0:[BQTLIB])