Update cheatsheets

tldr/linux/eselect-profile

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# eselect profile
+
+> An `eselect` module for managing the `/etc/portage/make.profile` symlink, which sets the system profile.
+> More information: <https://wiki.gentoo.org/wiki/Eselect#Profile>.
+
+- List available profile symlink targets with their numbers:
+
+`eselect profile list`
+
+- Set the `/etc/portage/make.profile` symlink by name or number from the `list` command:
+
+`eselect profile set {{name|number}}`
+
+- Show the current system profile:
+
+`eselect profile show`