function init_default_config() {
if [ -z "$ROOTDIR" ]; then
    ROOTDIR=$HOME/.sns
fi
if [ -z "$BASEDIR" ]; then
    BASEDIR=$ROOTDIR/notes
fi
if [ -z "$EXT" ]; then
    EXT=note
fi
if [ -z "$EDITOR" ]; then
    EDITOR=vim
fi
if [ -z "$ENC_KEY" ]; then
    ENCRYPTION="FALSE"
else
    ENCRYPTION="TRUE"
fi
}