Update cheatsheets

iotop

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# iotop
+
+> Display a table of current I/O usage by processes or threads.
+> More information: <https://manned.org/iotop>.
+
+- Start top-like I/O monitor:
+
+`sudo iotop`
+
+- Show only processes or threads actually doing I/O:
+
+`sudo iotop --only`
+
+- Show I/O usage in non-interactive mode:
+
+`sudo iotop --batch`
+
+- Show only I/O usage of processes (default is to show all threads):
+
+`sudo iotop --processes`
+
+- Show I/O usage of given PID(s):
+
+`sudo iotop --pid={{PID}}`
+
+- Show I/O usage of a given user:
+
+`sudo iotop --user={{user}}`
+
+- Show accumulated I/O instead of bandwidth:
+
+`sudo iotop --accumulated`