Shell Programming and Scripting

set -A cmp_varnames=(cmp_var1 cmp_var2)
for cmp in ${cmp_varnames[*]}
do
eval ${${cmp}.field}
done

$ cat x
#!/usr/dt/bin/dtksh

## Define Compound variables.
cmp_var1=( code=10 desc="hello" )
cmp_var2=( code=20 desc="world" )

## Create array of compound variables.
set -A cmp_varnames cmp_var1 cmp_var2

## Print the descriptions.
for cmp in ${cmp_varnames[*]}
do
  # Use a name reference instead of eval.
  typeset -n mydesc="$cmp.desc"
  print $mydesc
done

exit 0
$ ./x
hello
world
$

#!/bin/ksh93

typeset -C cmp_var1
cmp_var1.field=date

typeset -C cmp_var2
cmp_var2.field=whoami

set -A cmp_varnames cmp_var1 cmp_var2

for cmp in ${cmp_varnames[*]}
do
   nameref my=$cmp.field
   $my
done