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Try:ps -ef | grep mgr.prm | awk '{print $10}' | sed 's!/dirprm/mgr\.prm$!!'

you can google it also.

grep -w

That is a Useless Use of cat (http://partmaps.org/era/unix/award.html#cat) and Useless Use of wc -l (http://partmaps.org/era/unix/award.html#wc)

Use an infinite while loop and break when found:...

That's an odd if. Most likely you just want:


if grep -q "$ORACLE_SID" /etc/oratab


or


if grep "$ORACLE_SID" /etc/oratab >/dev/null 2>&1



edit: "Useless Use of Test" / "Useless Use...

You could come up with your own system. Ask the google, I have seen many menuing systems folks have come up with. Here's a fairly simple one:
#!/bin/ksh

typeset -r SLEEPTIME=2

REVON=$(tput...

Further optimization:

if grep -q STOP /tmp/testoutput.log; then
echo "process stop"
fi

if grep -q START /tmp/testoutput.log; then
echo "process start"
fi

That is Useless Use of Cat (http://partmaps.org/era/unix/award.html#cat) and Useless Use of wc -l (http://partmaps.org/era/unix/award.html#wc)

Try this code:
if [ -f ${LOGFILE} ]; then
...

$ sqlplus -S <<! | while read; do printf 'line: %s\n' "$REPLY"; done
> / as sysdba
> select sysdate from dual;
> !
line:
line: SYSDATE
line: ---------
line: 08-JAN-13
line:
Or:
$ sqlplus -S...

Try this:
{ sqlplus -s /nolog <<EOF
set head off pagesize 0 feedback off linesize 200
whenever sqlerror exit 1
conn / as sysdba
COL VALUE FOR A60
select value,name from v\$parameter where value...