add the old snippet md files

old_snippets/split-files.md

@@ -0,0 +1,15 @@
+---
+title: "split files"
+date: 2021-06-13T08:31:03+02:00
+draft: false
+snippet_types:
+- split
+---
+
+To prevent upload errors to S3 Glacier I keep my files ~500mb. So larger ones must be split.
+
+```shell
+$ split -b 500mb example.txt example.txt.part
+```
+
+[perl script example](https://paste.sr.ht/~travisshears/1327a69aea4e86e17894aeec9e16011338280b8a)