Update cheatsheets

tldr/split

@@ -23,3 +23,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Split a file with at most 512 bytes in each split without breaking lines:
 
 `split {{[-C|--line-bytes]}} 512 {{path/to/file}}`
+
+- Split into multiple files from `stdin`:
+
+`gzip {{[-cd|--stdout --decompress]}} {{path/to/compressed_file.gz}} | split {{[-l|--lines]}} 1000 - {{path/to/output}}`