rewrite calcurse imports

data/calcurse_import.sh

@@ -0,0 +1,34 @@
+---
+title: Import an ICS file into calcurse
+tags: 
+- data
+- calendar
+- daylight savings
+requires:
+- calcurse
+---
+
+## Setup
+
+The UK government keeps an `ics` file with clock.
+
+```sh
+wget https://www.gov.uk/when-do-the-clocks-change/united-kingdom.ics
+calcurse -i united-kingdom.ics
+```
+
+If you already have some of these events, and don't want duplicates, import the events into a temporary file.
+
+
+```sh
+TMP=$(mktemp)
+curl -s "$1" | calcurse -q -i - -c "$TMP"
+```
+
+Then search for new lines in the new calendar file to put into your appointments file.
+
+```sh
+CALDATA=~/.local/share/calcurse/apts
+grep -vf "$CALDATA" "$TMP" >> "$CALDATA"
+rm $TMP
+```