The result of bash's indirect expansion differs between RHEL6 and RHEL7.

Issue

• The result of bash's indirect expansion differs between RHEL6 and RHEL7.

• Bash in RHEL7 cannot get the last argment value using ${!#}.

  For example:

  $ cat test.sh
  !#/bin/sh
  echo ${!#}
  
  (In the case of RHEL6)
  $ test.sh a b c
  c
  $
  
  (In the case of RHEL7)
  $ test.sh a b c
  $
  

• When did it change?