nixCraft

dba · #1 (**permalink**) 4th November 2008, 07:06 PM

Hello

I am using an array in one of my Korn Shell scripts. It works fine if I set the name of Array in the script, but gives error if I try to set the name dynamically (eg by user input or read from some file).

For example, the below mentioned script works well

Code:

 #!/bin/ksh
 set -A ARR
while read line
do
 ARR[i]=${line}
 let i=${i}+1
done</tmp/d.dat
 
i=0
while [ ${i} -le ${#ARR[*]} ]
do
  echo ARR[i]
let i=${i}+1
done

But it gives error if I modify it as below:

Code:

#!/bin/ksh
echo "Enter Array Name"
read ARR
set -A $ARR
while read line
do
 $ARR[i]=${line}
 let i=${i}+1
done</tmp/d.dat
i=0
while [ ${i} -le ${#ARR[*]} ]
do
  echo ${$ARR[i]}
let i=${i}+1
done

The file /tmp/d.dat is a file containing some numbers line by line.
Can we make it to set the array name dynamically ?

nixcraft · #2 (**permalink**) 12th November 2008, 06:44 PM

The value of all subscripts must be in the range of 0 through 1,048,575, so that is your range. I do not think so you can create dynamic array names in shell scripts.

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Array limitation in Korn (ksh) shell?

Array limitation in Korn (ksh) shell?

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