in reply to Re^4: Using . in variable name
in thread Using . in variable name

Double quotes interpolate variables. This would therefore replace $app1 with the contents of the $app1 variable.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ