extend recfiles example

data/recfiles.md

@@ -0,0 +1,51 @@
+---
+title: "Recfiles"
+tags: [ "data", "database" ]
+---
+
+Create a database of board games:
+
+```bash
+database=games.rec
+touch $database
+
+entry="Name: Vojvodina"
+recins --record "$record" $database
+```
+
+Create, read, update, and delete:
+
+```bash
+for g in Saboter Carcassonne Chess; do
+    recins -r "Name: $g" -r "Played: yes" $database
+done
+
+query=Carc
+recsel --quick=Carc $database
+recsel -q $query $database
+
+query=sabat
+recsel --case-insensitive -q "$query" --print=Name $database
+
+query=chess
+recsel -i -q "$query" -p Name $database
+
+new_field=Played
+value=no
+
+recset -f "$new_field" --set-add="$value" $database
+recsel $database
+
+value=yes
+recset -iq $query -f "$new_field" --set=$value $database
+
+recset -f "$new_field" --delete $database
+recsel $database
+```
+
+- [Extended example](recfiles/extended.md)
+
+# Resources
+
+- [Recfiles for gemini capsules](gemini://tilde.town/~dozens/gemlog/21.gmi)
+