When using xfce, ~/Desktop is the only directory that created in default.
And, in function install_liraries(), creating directory ~/Documents/sslinst_tmp - and this function is run as root.
So it will cause permission problem.
It is better to use temporal directory
idea : use mktemp
# current code
local path_tmp=/home/${SUDO_USER}/Documents/sslinst_tmp/
mkdir -p path_tmp && cd $_
# using mktemp : no need to mkdir, mktemp make directory and return its path
local path_tmp="$(mktemp)/sslinst_tmp/"
When using xfce, ~/Desktop is the only directory that created in default.
And, in function install_liraries(), creating directory
~/Documents/sslinst_tmp- and this function is run as root.So it will cause permission problem.
It is better to use temporal directory
idea : use
mktemp