Move pages under tldr, lint run.sh, update docs

tldr/file

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# file
+
+> Determine file type.
+> More information: <https://manned.org/file>.
+
+- Give a description of the type of the specified file. Works fine for files with no file extension:
+
+`file {{path/to/file}}`
+
+- Look inside a zipped file and determine the file type(s) inside:
+
+`file -z {{foo.zip}}`
+
+- Allow file to work with special or device files:
+
+`file -s {{path/to/file}}`
+
+- Don't stop at first file type match; keep going until the end of the file:
+
+`file -k {{path/to/file}}`
+
+- Determine the MIME encoding type of a file:
+
+`file -i {{path/to/file}}`