error_table ss ec SS_ET_SUBSYSTEM_ABORTED, "Subsystem aborted" ec SS_ET_VERSION_MISMATCH, "Version mismatch" ec SS_ET_NULL_INV, "No current invocation" ec SS_ET_NO_INFO_DIR, "No info directory" ec SS_ET_COMMAND_NOT_FOUND, "Command not found" ec SS_ET_LINE_ABORTED, "Command line aborted" ec SS_ET_EOF, "End-of-file reached" ec SS_ET_PERMISSION_DENIED, "Permission denied" ec SS_ET_TABLE_NOT_FOUND, "Request table not found" ec SS_ET_NO_HELP_FILE, "No info available" ec SS_ET_ESCAPE_DISABLED, "Shell escapes are disabled" ec SS_ET_UNIMPLEMENTED, "Sorry, this request is not yet implemented" end