I am new to Unix and have been given the task of modifying a current script. Most of the programming I do is Oracle based, not unix.
That being said when I run my current script i get the following (not sure if this is an actual error or if it is just being informative)
Code:
./test_cron.s[56]: cdev: not found
./test_cron.s[60]: cdev: not found
The if statement is as follows, first line is 56:
Code:
if ${ORACLE_SID} -eq "csdb"
then
export email_recipient="CronMgmtTeam"
else
if ${ORACLE_SID} -eq "cstg"
then
export email_recipient="qa"
else
export email_recipient="me"
fi
fi
my intention is that if the parameter is not one of the two specified (csdb and cstg) then I will become the email recipient, I am passing the parameter cdev hence the "errors". There is another error that is preventing this script to complete which I believe is a permissions issue so I cant really tell if this is working as expected yet.
Sorry for the newb question, thanks in advance for any insight.
Last edited by Scott; 07-31-2013 at 10:08 AM..
Reason: Please use code tags
if commandline
then # if commandline exit status is 0
do_something
else # if commandline exit status is not 0
do_some
fi
Often you use if together with test command which you can write using command test or [.
Or
A conditional expression is used with the [[ compound command to test attributes.
-eq is arithmetic comparisons. With strings == and != is better operators.
Add "" round the variable. Why ? If variable is not set, then you get error, but if it is inside "", then you have string which length is always something, sometimes 0. Here is example where use test cond, not [[
Code:
if [ "$ORACLE_SID" = "csdb" ]
then
export email_recipient="CronMgmtTeam"
elif [ "$ORACLE_SID" = "cstg" ]
then
export email_recipient="qa"
else
export email_recipient="me"
fi
Also setting always default value before testing, you need less if-then-else branches.
Code:
email_recipient="me"
export email_recipient
# after that 3 version:
# ver1
if [ "$ORACLE_SID" = "csdb" ]
then
email_recipient="CronMgmtTeam"
elif [ "$ORACLE_SID" = "cstg" ]
then
email_recipient="qa"
fi
# ver 2
if [ "$ORACLE_SID" = "csdb" ] ; then
email_recipient="CronMgmtTeam"
fi
if [ "$ORACLE_SID" = "cstg" ] ; then
email_recipient="qa"
fi
# ver3
[ "$ORACLE_SID" = "csdb" ] && email_recipient="CronMgmtTeam"
[ "$ORACLE_SID" = "cstg" ] && email_recipient="qa"
I like to use case in this kind of testing (lot of branches), so nice to read. Case is powerful for pattern testing.
Code:
export email_recipient
case "$ORACLE_SID" in
csdb) email_recipient="CronMgmtTeam" ;;
cstg) email_recipient="qa" ;;
*) email_recipient="me" ;;
esac
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07-31-2013
