Note on listing functions

zix99 · Jul 17, 2024 · d7d90a2 · d7d90a2
1 parent a203575
commit d7d90a2
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/docs/usage/funcsfile.md b/docs/usage/funcsfile.md
@@ -26,6 +26,12 @@ rare filter -m '(\d+)' -e '{double {1}}' access.log
 You can load multiple files by providing `--funcs` argument multiple
 times, or providing a comma-separated list to `$RARE_FUNC_FILES`
 
+### Testing
+
+To validate that your function(s) are showing up as expected, you
+can test them with `rare expr ...` or list them by running
+`rare expr --listfuncs`.
+
 ## Format
 
 A functions file is key-value pairs of `name` to `expression`. Lines