I wonder if the script below is possible to write somehow more efficiently. It seems to me the problem is very common..

CreateFolders() # parameter: name of file with relative path with regard to directory $project_root
{
echo $1 | awk '{ n=split($1, array, "/");
for (i=1;i<n;i++) {
print array[i]
}
} ' >"$project_root/createDirectory.tmp"

if [ -s "$project_root/createDirectory.tmp" ]; then

folder=$project_root

while read subdir; do

if [ ! -d "$folder/$subdir" ];then
mkdir "$folder/$subdir"
fi

cd "$folder/$subdir"

folder="$folder/$subdir"

done<"$project_root/createDirectory.tmp"

fi

rm "$project_root/createDirectory.tmp";
}

Thank you for help

I'm not sure I understand what you exactly are trying to do.
You can use mkdir -p <directory tree> to create the whole tree in one go
e.g.:
folder=${project_root}/local/pub/etc
mkdir -p $folder

thanks you! it's pretty faster way