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Shell Programming and Scripting

Verify the input

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# 1  
Old 11-17-2010
Verify the input
I run the script with one parameter : myscript abc002

But I need my script to check the parameter in txt array first:

txt="abc001 abc002 abc004"

What's the best way to do it? I am using ksh.

Code:
#! /usr/bin/ksh

txt="abc001 abc002 abc004"
if [ $1 not in txt ]; then
    echo " Your input is wrong, please run the script by $0 ( $txt ) "
    exit
fi

# 2  
Old 11-17-2010
If you have ksh93 this will work:

Code:
txt="abc001|abc002|abc004"
case "$1" in
    $txt) ;;
    *) echo "Your input is wrong, please run the script by $0 [$txt]"
    exit ;;
esac

If not, you will need to eval the whole case statement - watch imbedded quotes
Code:
txt="abc001|abc002|abc004"
eval "case \"$1\" in
    $txt) ;;
    *) echo \"Your input is wrong, please run the script by $0 [$txt]\"
    exit ;;
esac "

Last edited by Chubler_XL; 11-17-2010 at 11:43 PM..
This User Gave Thanks to Chubler_XL For This Post:
newoz
# 3  
Old 11-18-2010
The second one works in my env.

But my env has been set by txt="abc001 abc002 abc004" (split by space, not |)

Can you update from this?
# 4  
Old 11-18-2010
Just setup another var with pipes (txt2 in this case):

Code:
txt="abc001 abc002 abc004"
txt2=`echo $txt | sed 's/ /|/g'`
eval "case \"$1\" in
    $txt2) ;;
    *) echo \"Your input is wrong, please run the script by $0 [$txt2]\"
    exit ;;
esac "

# 5  
Old 11-18-2010
The same, without echo and sed
Code:
txt="abc001 abc002 abc004"
case $1 in
    ${txt// /|}) ;;
    *) echo "Your input is wrong, please run the script by $0 [$txt]"
    exit ;;
esac

# 6  
Old 11-18-2010
@frans: that will not work in ksh88. It isn't clear what version the OP has..
# 7  
Old 11-18-2010
Quote:
Originally Posted by Scrutinizer
@frans: that will not work in ksh88. It isn't clear what version the OP has..
I try to check the ksh version, but I don't know.

Code:
$ ksh --help
$ exit


$ ksh -VER
-VER: bad option(s)

$ ksh -v
$

My system is solaris 10. Can you tell me how to check the ksh version?
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