Update cheatsheets

openbsd/cal

@@ -0,0 +1,37 @@
+---
+syntax: markdown
+tags: [tldr, openbsd]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cal
+
+> Display a calendar with the current day highlighted.
+> More information: <https://man.openbsd.org/cal>.
+
+- Display a calendar for the current month:
+
+`cal`
+
+- Display a calendar for a specific year:
+
+`cal {{year}}`
+
+- Display a calendar for a specific month and year:
+
+`cal {{month}} {{year}}`
+
+- Display a calendar for the current [y]ear:
+
+`cal -y`
+
+- Display [j]ulian days (starting from one, numbered from January 1):
+
+`cal -j`
+
+- Use [m]onday as week start instead of Sunday:
+
+`cal -m`
+
+- Number [w]eek numbers (incompatible with `-j`):
+
+`cal -w`