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

tldr/linux/cryptsetup

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cryptsetup
+
+> Manage plain dm-crypt and LUKS (Linux Unified Key Setup) encrypted volumes.
+> More information: <https://gitlab.com/cryptsetup/cryptsetup/>.
+
+- Initialize a LUKS volume (overwrites all data on the partition):
+
+`cryptsetup luksFormat {{/dev/sda1}}`
+
+- Open a LUKS volume and create a decrypted mapping at `/dev/mapper/target`:
+
+`cryptsetup luksOpen {{/dev/sda1}} {{target}}`
+
+- Remove an existing mapping:
+
+`cryptsetup luksClose {{target}}`
+
+- Change the LUKS volume's passphrase:
+
+`cryptsetup luksChangeKey {{/dev/sda1}}`