diff --git a/pages/common/sync.md b/pages/common/sync.md
index c9fb0334eb..26d983ada1 100644
--- a/pages/common/sync.md
+++ b/pages/common/sync.md
@@ -10,3 +10,11 @@
 - Flush all pending write operations on a single file to disk:
 
 `sync {{path/to/file}}`
+
+- Flush writes and drop file system caches (Linux only):
+
+`sync; echo 3 | sudo tee /proc/sys/vm/drop_caches`
+
+- Flush disk writes and attempts to clear inactive memory and filesystem caches (macOS only):
+
+`sync; sudo purge`