Shell argument

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# 1  
Old 08-30-2009
Shell argument

I need to create a Kash script that will read two arguments. So if the user enters anything but 2 arguments then they will get and error message. If they enter the two arguments then it will print them out in reverse order. Does anyone know how i can do this?
# 2  
Old 08-30-2009
if [ $# -eq 2 ]; then
        echo $2 $1
        echo "Please introduce 2 arguments"

# 3  
Old 08-30-2009
How would you also enter the script name after the arguments?
# 4  
Old 08-31-2009
./script arg1 arg2
# 5  
Old 08-31-2009
Originally Posted by vthokiefan
script name
echo $0

# 6  
Old 08-31-2009
$ cat
[ $# -ne 2 ] && echo "Usage ${0} input1 input2 " && exit 1;
echo $2 $1
$ ./ 1 2
2 1
$ ./
Usage ./ input1 input2

# 7  
Old 08-31-2009
Sorry to be a pain again
The trailing semicolon is not needed and can cause some shells to misbehave.
In this context it is harmless.
I'm only being pedantic because you are building a useful resource.

[ $# -ne 2 ] && echo "Usage ${0} input1 input2 " && exit 1;
echo $2 $1

Personally I might use "&&" to test the success of a command when writing a dependent cron, but rarely in scripts.
However in Oracle scripting the semicolon is critical.

Last edited by methyl; 08-31-2009 at 07:19 PM..
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