Update cheatsheets

comby

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# comby
+
+> Tool for structural code search and replace that supports many languages.
+> More information: <https://github.com/comby-tools/comby>.
+
+- Match and rewrite templates, and print changes:
+
+`comby '{{assert_eq!(:[a], :[b])}}' '{{assert_eq!(:[b], :[a])}}' {{.rs}}`
+
+- Match and rewrite with rewrite properties:
+
+`comby '{{assert_eq!(:[a], :[b])}}' '{{assert_eq!(:[b].Capitalize, :[a])}}' {{.rs}}`
+
+- Match and rewrite in-place:
+
+`comby -in-place '{{match_pattern}}' '{{rewrite_pattern}}'`
+
+- Only perform matching and print matches:
+
+`comby -match-only '{{match_pattern}}' ""`