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Re:Show HN: Twitch Installs Arch Linux – A cooperative text-... by mcguire on Friday October 30, 2015 @12:53PM (#10478945)
Technically, the official method of exiting ed, if you're running as root, is:

    $ed a_file
    ... (normal usage)
    r /etc/motd
    w /boot/vmlinuz-3.19.0-16-generic (replace with specific kernel)
    !reboot
The alternative of "w /dev/sda1" is also acceptable.
Re:Show HN: Twitch Installs Arch Linux – A cooperative text-... by mcguire on Friday October 30, 2015 @01:01PM (#10479007)
Note to those objecting to '$': I have PS1 set to '$' on every account. It just saves confusion.
Re:Show HN: Twitch Installs Arch Linux – A cooperative text-... by iso8859-1 on Friday October 30, 2015 @02:02PM (#10479411)
Don't you think it is prettier with the space?
Re:Show HN: Twitch Installs Arch Linux – A cooperative text-... by mcguire on Friday October 30, 2015 @02:24PM (#10479564)
Nah, just adds clutter.

[Fixed in the great-grandparent.]