This Gives you all the SQLPLUS parms and you can ask to show specific parm as shown :
<font face=courier>
SQL> show all
appinfo is ON and set to "SQL*Plus"
arraysize 15
autocommit OFF
autoprint OFF
autotrace OFF
blockterminator "." (hex 2e)
......
......
</font>

<font face=courier>
SQL> show user
USER is "SYSTEM"
</font>

[Edited by sreddy on 01-18-2001 at 06:11 PM]