bashrc: Improve cdtmp to include date in dir name

.bashrc.d/10_common_aliases.sh

@@ -36,16 +36,18 @@ yay() {
 	command yay "$@"
 }
 
-# Create and cd to tmp dir
-alias cdtmp='cd $(mktemp -d -p ~/tmp/)'
+# Create and cd to temporary directory ~/tmp/tmp.YYYYMMDD.XXXXXX or ~/tmp/tmp.$1.XXXXXX if an argument is given
+function cdtmp() {
+	cd $(mktemp -d -p ~/tmp tmp.${1:-$(date +%Y%m%d)}.XXXXXX)
+}
 
-# Make dir and cd to it (from Mara)
+# Make dir and cd into it (from Mara)
 function mkcd() {
 	mkdir -p "$1"
 	cd "$1"
 }
 
-# cd to dir + ll (ls -la)
+# cd into dir + ll (ls -la)
 function cdll() {
 	cd "$1"
 	ls -la