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Insert user name, date/time, and/or PID into the file name to make it unique. Place it under a user's home directory. Assign sequential numbers.

Simple typo in variable name in your expression, try:

PRIM_SEQ=(200 100)
STDBY_SEQ=(50 20)
echo "====================================="
echo "PRIMARY_SEQUENCE of"
echo...

try:
#!/bin/sh

PRIM_SEQ=(`some sql code`)
STB_SEQ=(`some sql code`)

c=0
for i in ${PRIM_SEQ }
do
(( x = PRIM_SEQ[c] - STB_SEQ[c] ))
echo $x
(( c = c + 1 ))
done

The "compound command" including the break is not needed if you break out of the loop anyhow:
do echo $CHOICE
[ ! $CHOICE ] && echo "You have selected invalid Database"
breakBut you can also run...

man bash:


Try
[ ! $CHOICE ] && { echo "invalid entry"; break; };

Try
$ ps -eo args= | awk -F"_" '/pmon/ && !/ASM/ {print $3}'
abc1
abc2
abc3
abc4
abc5

Rather that ps -ef | grep pmon | grep -v grep | awk ...... might I suggest ps -ef | grep [p]mon | ....... instead. The square brackets are a pattern match that has only one option, but because there...

Please use the code tags for your code!
The remote code after the pipe does not work. You can do some escape effort.
Or run it locally:
STANDBY_CONF=$(
ssh $COB_HOST /bin/sh << EOF | awk -F:...

You are setting PRIMARY_CONF in your shell script and your script is seeing the value that you are setting. You are setting STANDBY_CONF in a shell that you are running on COB_HOST; not in the shell...

I think your set -x gives pretty clear idea that "srvctl config database...." is not having any output. So $STANDBY_CONF is empty.
May be you want to check by running this command directly on...

Try consistently putting spaces around [, ], and =.

Try
awk '/Services/ {match ($0, /[A-Za-z_]*COB[A-Za-z_]*/); print substr ($0, RSTART, RLENGTH)}' file
NEPAL_COB