Update cheatsheets

linux/arch-chroot

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# arch-chroot
+
+> Enhanced `chroot` command to help in the Arch Linux installation process.
+> More information: <https://man.archlinux.org/man/arch-chroot.8>.
+
+- Start an interactive shell (`bash`, by default) in a new root directory:
+
+`arch-chroot {{path/to/new/root}}`
+
+- Specify the user (other than the current user) to run the shell as:
+
+`arch-chroot -u {{user}} {{path/to/new/root}}`
+
+- Run a custom command (instead of the default `bash`) in the new root directory:
+
+`arch-chroot {{path/to/new/root}} {{command}} {{command_arguments}}`
+
+- Specify the shell, other than the default `bash` (in this case, the `zsh` package should have been installed in the target system):
+
+`arch-chroot {{path/to/new/root}} {{zsh}}`