** UNIX : set echo on in shell

   I am looking for a shell equivalent of  set echo on. set -x works and gives the output on the screen. I am looking for a way so that it also goes to the LOGIFLE. So I can get the command being executed in the log. For example  if I have  :

set -x

sqlplus .... > $OUTFIL

...

set +x

Then I want the output to go to log file. It displays on the screen but does not go to log. From the log it is difficult to know which sqlplus had the error. I tried to put a echo before the sqlplus to know it but i have to update it each time so looking for a better way. Zoran and Frank helped out dba village and I have made progress to this point. Could not find much on net. Thanks

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