maybe a bug in pushd() at 5.1.1

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Book:		Learning the bash Shell
Subject:		maybe a bug in pushd() at 5.1.1
Date:		2006-02-12 18:40:08
From:		Chelski

the pushd() funtion in section 5.1.1: `pushd ( ) {` `dirname=$1` `if cd ${dirname:?"missing directory name."} then DIR_STACK="$dirname ${DIR_STACK:-$PWD' '}" echo $DIR_STACK else echo still in $PWD. fi }` should it be: `pushd ( ) { dirname=$1 oldpwd=$PWD` `if cd ${dirname:?"missing directory name."} then DIR_STACK="$dirname ${DIR_STACK:-$oldpwd' '}" echo $DIR_STACK else echo still in $PWD. fi } ?`