The xyz.sh wrapper adds no telemetry and does not perform hidden actions. You can read the full source on the page or with curl -fsSL xyz.sh/ .sh before running it. Piping a remote script to bash is still a risk — review the source first. The script only changes the timezone and a locale you explicitly pass; it does not change other system settings.

Which operating systems are supported?

Declared support: Debian, Ubuntu, CentOS, Rocky Linux, and AlmaLinux. The script detects the distribution and asks before continuing on an unrecognized OS. Syntax was checked with bash -n and ShellCheck; installer scripts have not been end-to-end verified on every listed distribution.

Yes. Run it as root or via sudo bash. The script exits with a message if it is not root.

Run it again with the timezone you want, for example curl -fsSL xyz.sh/timezone | bash -s -- UTC. There is no separate uninstall flag.

How do I list available timezones?

curl -fsSL xyz.sh/timezone | bash -s -- --list. --list is read-only and does not require root.

Linux Timezone Tutorial (timedatectl and Locale)

This tutorial shows how to set the system timezone—and optionally the locale—with xyz.sh/timezone (aliases tz, locale).

Commands

List zones (read-only, root not required): curl -fsSL xyz.sh/timezone | bash -s -- --list

Set a timezone: curl -fsSL xyz.sh/timezone | bash -s -- Asia/Shanghai

Also set a locale: curl -fsSL xyz.sh/timezone | bash -s -- Asia/Taipei zh_TW.UTF-8

With no arguments and a TTY, the script prompts. When piped to bash without a TTY, a timezone argument is required.

timedatectl is preferred, with /etc/localtime as a fallback. Locales use locale-gen / update-locale on Debian and localectl on RHEL-like systems, installing glibc-langpack when needed.

How to change it back

There is no separate uninstall command. Use the same script to set the timezone you want, for example bash -s -- UTC, optionally with the previous locale.