Suppose I would like to do some operation like touch/rm
etc on a specific directory in shell script.
Firstly, I can do cd
to that directory and do it.
Secondly, I can use absolute path to do that.
My question is which one will be better in performance perspective? Which one is faster?
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Answer
You can time it yourself:
function timeThis { n=0 path="test/a" rm $path if [[ "$1" == abs ]]; then path="$(pwd)/$path" fi echo "$path" while [[ $n -lt 10000 ]]; do touch $path let n++ done } echo "absolute" time timeThis abs echo "relative" time timeThis rel
with this I get:
absolute real 0m5.502s user 0m3.394s sys 0m2.398s relative real 0m5.492s user 0m3.599s sys 0m2.373s
so it is almost the same for this many iterations on the path I tried