shell - Value of a ksh variable -

Let's take it through an example. An example ksh script is as follows:

  ab = 123 c = ad = b echo "$ {c} $ {d}" # Prints AB, but $ A needs to be printed I 123 "$ AB" # Print content $ A that is 123  

How do I the contents of varible through "$ {c} $ {d}" > means that the content of $ ab was created

You can use eval to get it:

  eval y = '$' $ {c} $ {d}; Revert $ y