Matching string


 
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# 1  
Matching string

Hello all,

i am trying to match a string and based on that proceed with my script or error out...
i have a file called /tmp/sta.log that will be populated by oracle's spooling..it can
have a output of either 2 of the below (OPEN or errors/ORACLE not avaiable)

Code:
$ cat /tmp/sta.log
OPEN
$
$ cat /tmp/sta.log
select status from v$instance
*
ERROR at line 1:
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0

now when i try to check for a condition(test) of open i get database up for both ??

FIRST TEST WITH db_sta.log having ERRORS

Code:
$ DB_STATUS=`cat /tmp/sta.log|grep OPEN`
$ echo $DB_STATUS

$ if test "$DB_STATUS"=OPEN; then
> echo "Database is up"
> else
> echo "Database is Down"
> fi
Database is up
$

next test with db_sta.log having OPEN in it

Code:
$ DB_STATUS=`cat /tmp/sta.log|grep OPEN`
$ echo $DB_STATUS
OPEN
$ if test "$DB_STATUS"=OPEN; then
> echo "Database is up"
> else
> echo "Database is Down"
> fi
Database is up
$

what am i doing wrong here ?
# 2  
You need to put blank spaces in between test expressions and also wrap string in double quotes:
Code:
if test "$DB_STATUS" = "OPEN"; then

But the simple way of doing it is:
Code:
if grep -q "OPEN" /tmp/sta.log
then
        echo "Database is up"
else
        echo "Database is Down"
fi

This User Gave Thanks to Yoda For This Post:
# 3  
wow...couple of simple spaces drove me nuts for an hour...Thank you for your help..May GOD bless you...
This User Gave Thanks to abdul.irfan2 For This Post:
 

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