oracle:listener$ cat /etc/oratab
#
# This file is used by ORACLE utilities.  It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
#
# A colon, ':', is used as the field terminator.  A new line terminates
# the entry.  Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
#   $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively.  The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#============================================
db11:/u01/app/oracle/product/11.2.0.4/dbhome_1:N
db12:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
listener:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
fs91dmo:/u01/app/oracle/product/11.2.0.4/dbhome_1:N
fs91dev:/u01/app/oracle/product/11.2.0.4/dbhome_1:N
hr92dev:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
fs92upg:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
fs92dev:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
hr92tst:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
fs91upg:/u01/app/oracle/product/12.1.0.2/dbhome_1:N
hr92upg:/u01/app/oracle/product/11.2.0.4/dbhome_1:N

oracle:hr92dev$ type echo grep ps
echo is a shell builtin
grep is /bin/grep
ps is /bin/ps

oracle:hr92dev$ uname -n
myserver.myorg.org

oracle:hr92dev$ ORACLE_SID=fs

oracle:fs$ ps -ef|grep '[p]'mon_$ORACLE_SID
oracle    1631     1  0 Jan22 ?        00:00:54 ora_pmon_fs91dmo
oracle    2842     1  0 Jan22 ?        00:00:41 ora_pmon_fs91upg
oracle    4317     1  0 Jan22 ?        00:00:57 ora_pmon_fs91dev
oracle    9786     1  0 Jan04 ?        00:03:09 ora_pmon_fs92upg
oracle   21794     1  0 Jan05 ?        00:03:05 ora_pmon_fs92dev


+ type echo grep ps
echo is a shell builtin
grep is /bin/grep
ps is /bin/ps
+ uname -n
myserver.myorg.org
+ ORACLE_SID=fs
+ ps -ef
+ grep '[p]mon_fs'
oracle    1631     1  0 Jan22 ?        00:00:54 ora_pmon_fs9
oracle    2842     1  0 Jan22 ?        00:00:42 ora_pmon_fs9
oracle    4317     1  0 Jan22 ?        00:00:57 ora_pmon_fs9
oracle    9786     1  0 Jan04 ?        00:03:09 ora_pmon_fs9
oracle   21794     1  0 Jan05 ?        00:03:05 ora_pmon_fs9
egrep -i "product/12" /etc/oratab |grep -v "listener"|      awk -F\: '{print $1}'|sort
++ egrep -i product/12 /etc/oratab
++ grep -v listener
++ awk -F: '{print $1}'
++ sort
+ dblist='db12
fs91upg
fs92dev
fs92upg
hr92dev
hr92tst'
+ echo list is db12 fs91upg fs92dev fs92upg hr92dev hr92tst
list is db12 fs91upg fs92dev fs92upg hr92dev hr92tst
+ echo

+ echo

+ echo 'INSTANCE_NAME    HTTPS Port  HTTP Port'
INSTANCE_NAME    HTTPS Port  HTTP Port
+ echo '---------------- ---------- ----------'
---------------- ---------- ----------
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_db12
checking for pmon_db12
+ echo db12
+ od -tx1c
0000000  64  62  31  32  0a
          d   b   1   2  \n
0000005
+ ps -ef
+ grep pmon_db12
+ grep -v grep
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_db12
+ grep -v grep
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_fs91upg
checking for pmon_fs91upg
+ echo fs91upg
+ od -tx1c
0000000  66  73  39  31  75  70  67  0a
          f   s   9   1   u   p   g  \n
0000010
+ ps -ef
+ grep pmon_fs91upg
+ grep -v grep
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_fs91upg
+ grep -v grep
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_fs92dev
checking for pmon_fs92dev
+ echo fs92dev
+ od -tx1c
0000000  66  73  39  32  64  65  76  0a
          f   s   9   2   d   e   v  \n
0000010
+ ps -ef
+ grep pmon_fs92dev
+ grep -v grep
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_fs92dev
+ grep -v grep
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_fs92upg
checking for pmon_fs92upg
+ echo fs92upg
+ od -tx1c
0000000  66  73  39  32  75  70  67  0a
          f   s   9   2   u   p   g  \n
0000010
+ ps -ef
+ grep pmon_fs92upg
+ grep -v grep
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_fs92upg
+ grep -v grep
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_hr92dev
checking for pmon_hr92dev
+ echo hr92dev
+ od -tx1c
0000000  68  72  39  32  64  65  76  0a
          h   r   9   2   d   e   v  \n
0000010
+ ps -ef
+ grep -v grep
+ grep pmon_hr92dev
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_hr92dev
+ grep -v grep
+ for ORACLE_SID in '$dblist'
+ echo checking for pmon_hr92tst
checking for pmon_hr92tst
+ echo hr92tst
+ od -tx1c
0000000  68  72  39  32  74  73  74  0a
          h   r   9   2   t   s   t  \n
0000010
+ ps -ef
+ grep pmon_hr92tst
+ grep -v grep
+ echo ps command complete
ps command complete
+ ps -ef
+ grep pmon_hr92tst
+ grep -v grep
+ set +xv