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

tldr/badblocks

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# badblocks
+
+> Search a device for bad blocks.
+> Some usages of badblocks can cause destructive actions, such as erasing all data on a disk, including the partition table.
+> More information: <https://manned.org/badblocks>.
+
+- Search a disk for bad blocks by using a non-destructive read-only test:
+
+`sudo badblocks {{/dev/sdX}}`
+
+- Search an unmounted disk for bad blocks with a [n]on-destructive read-write test:
+
+`sudo badblocks -n {{/dev/sdX}}`
+
+- Search an unmounted disk for bad blocks with a destructive [w]rite test:
+
+`sudo badblocks -w {{/dev/sdX}}`
+
+- Use the destructive [w]rite test and [s]how [v]erbose progress:
+
+`sudo badblocks -svw {{/dev/sdX}}`
+
+- In destructive mode, [o]utput found blocks to a file:
+
+`sudo badblocks -o {{path/to/file}} -w {{/dev/sdX}}`
+
+- Use the destructive mode with improved speed using 4K [b]lock size and 64K block [c]ount:
+
+`sudo badblocks -w -b {{4096}} -c {{65536}} {{/dev/sdX}}`