In principle, recursion is never necessary. It can always be replaced by an iterative construct, such as while or until. Rewrite makepath (page 1066) as a nonrecursive function. Which version do you prefer? Why?

What will be an ideal response?


function makepath2()

{

wd=$(pwd)

pathname=$1

while [[ $pathname = */* && ${#pathname} > 0 ]]

do

if [[ ! -d "${pathname%%/*}" ]]

then

mkdir "${pathname%%/*}"

fi

cd "${pathname%%/*}"

pathname="${pathname#*/}"

done

if [[ ! -d $pathname && ${#pathname} > 0 ]]

then

mkdir $pathname

fi

cd $wd

}

The recursive version is simpler: There is no need to keep track of the work-
ing directory and you do not have to handle the task of making the final

directory separately.

Computer Science & Information Technology

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What will be an ideal response?

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