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Shell Programming and Scripting

check for param values

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# 1  
Old 03-18-2011
check for param values
I need to check for 4ht parameter values, if they are not in (17,18) in other words if they r not equal to 17 or 18 then exit.
can u help pls
# 2  
Old 03-18-2011
What is the parameter name ?
Is it in a variable ? (variable name ?)
Is it in a configuration file ? (configuration file name ?)

What code do you have ? what have you tried so far ?

Please give more clue
# 3  
Old 03-18-2011
I need to take the 4th parameter value and check in side the database get either 17 days back worth of data or 18 days of worht of data based on the parameter passed. if the parameter is passed anything other than 17 or 18 then it should exit

---------- Post updated at 02:03 PM ---------- Previous update was at 02:01 PM ----------

it stritaway passed to shell script from the command prompt like
AE RVSA PRD 17
# 4  
Old 03-18-2011
Code:
case "$4" in
1[78]) echo " value is ok" ;;
*) echo "Error : parameter number 4 should have the value 17 or 18" ;;
esac

Code:
case "$4" in
 1[78]) echo " value is ok" ;;
 *)  echo "Error : parameter number 4 should have the value 17 or 18" && exit 1 ;;
 esac

Code:
# set -- $(echo "AE RVSA PRD 17")
# case $4 in
> 1[78]) echo "OK" ;;
> *) echo "KO : script abort" && exit 1 ;;
> esac
OK

# 5  
Old 03-18-2011
thank you very much . you have been of greate help to me
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