Update cheatsheets

tldr/linux/slabtop

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# slabtop
+
+> Display kernel slab cache information in real time.
+> See also: `top`, `htop`, `atop`.
+> More information: <https://manned.org/slabtop>.
+
+- Start `slabtop`:
+
+`sudo slabtop`
+
+- Sort by [c]ache size:
+
+`sudo slabtop {{[-s|--sort]}} c`
+
+- Sort by number of [o]bjects:
+
+`sudo slabtop {{[-s|--sort]}} o`
+
+- Sort by object [s]ize:
+
+`sudo slabtop {{[-s|--sort]}} s`
+
+- Display once and then exit:
+
+`sudo slabtop {{[-o|--once]}}`
+
+- Display help:
+
+`slabtop {{[-h|--help]}}`