Update cheatsheets

linux/swapoff

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# swapoff
+
+> Disable devices and files for swapping.
+> Note: `path/to/file` can either point to a regular file or a swap partition.
+> More information: <https://manned.org/swapoff>.
+
+- Disable a given swap area:
+
+`swapoff {{path/to/file}}`
+
+- Disable all swap areas in `/proc/swaps`:
+
+`swapoff --all`
+
+- Disable a swap partition by its label:
+
+`swapoff -L {{label}}`