diff --git a/cheat/cheatsheets/uniq b/cheat/cheatsheets/uniq
new file mode 100644
index 0000000..994b706
--- /dev/null
+++ b/cheat/cheatsheets/uniq
@@ -0,0 +1,12 @@
+# show all lines without duplication
+sort file | uniq
+# show not duplicated lines
+sort file | uniq -u
+# show duplicated lines only
+sort file | uniq -d
+# count all lines
+sort file | uniq -c
+# count not duplicated lines
+sort file | uniq -uc
+# count only duplicated lines
+sort file | uniq -c