# test of redone post-increment and post-decrement code(  echo $(( 4-- ))   )(  echo $(( 4++ ))   )(  echo $(( 4 -- ))  )(  echo $(( 4 ++ ))  )#ash# (( array[0]++ ))#ash# echo ${array}#ash# (( array[0] ++ ))#ash# echo ${array}#ash# (( a++ ))#ash# echo $a#ash# (( a ++ ))#ash# echo $a      a=2echo 6 $(( a ++ + 4 ))echo 3 $aecho 7 $(( a+++4 ))echo 4 $aecho 0 $(( a---4 ))echo 3 $aecho 7 $(( a -- + 4 ))echo 2 $aecho -2 $(( a -- - 4 ))echo 1 $a#ash# (( ++ + 7 ))#ash# (( ++ ))(  echo $(( +++7 ))  )# bash 3.2 apparently thinks that ++ +7 is 7#ash# echo $(( ++ + 7 ))#ash# (( -- ))