Update cheatsheets

tldr/linux/tunelp

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# tunelp
+
+> Set various parameters for parallel port devices for troubleshooting or for better performance.
+> Part of `util-linux`.
+> More information: <https://manned.org/tunelp>.
+
+- Check the [s]tatus of a parallel port device:
+
+`tunelp --status {{/dev/lp0}}`
+
+- [r]eset a given parallel port:
+
+`tunelp --reset {{/dev/lp0}}`
+
+- Use a given [i]RQ for a device, each one representing an interrupt line:
+
+`tunelp -i 5 {{/dev/lp0}}`
+
+- Try a given number of times to output a [c]haracter to the printer before sleeping for a given [t]ime:
+
+`tunelp --chars {{times}} --time {{time_in_centiseconds}} {{/dev/lp0}}`
+
+- Enable or disable [a]borting on error (disabled by default):
+
+`tunelp --abort {{on|off}}`