jless: add page (#23211)

pages/common/jless.md

@@ -0,0 +1,37 @@
+# jless
+
+> View and explore JSON data interactively.
+> See also: `jq`, `fx`, `less`.
+> More information: <https://jless.io/user-guide>.
+
+- Open a JSON file:
+
+`jless {{path/to/file.json}}`
+
+- Read JSON from `stdin`:
+
+`cat {{path/to/file.json}} | jless`
+
+- Force YAML parsing regardless of file extension:
+
+`jless --yaml {{path/to/file}}`
+
+- Start in line mode (show braces, commas, and quoted object keys):
+
+`jless {{[-m|--mode]}} line {{path/to/file.json}}`
+
+- Hide line numbers:
+
+`jless {{[-N|--no-line-numbers]}} {{path/to/file.json}}`
+
+- Show relative line numbers:
+
+`jless {{[-r|--relative-line-numbers]}} {{path/to/file.json}}`
+
+- [Interactive] Search forward for a pattern (press `<n>`/`<N>` for next/previous match):
+
+`</>{{pattern}}`
+
+- [Interactive] Exit:
+
+`<q>`