Stuck in a system without sudo, without apt and without a file-editor. Oh gawd where do i begin

su

The package manager of alpine "apk".

@Linux 'su -' indeed , took me way too long to figure out

How to install packages without yum or apt-get? I always wondered

@growling Compiling from source, or using a platform specific package managemers (apk on alpine, or even the "lower-level package manager" like dpkg or rpm). deb- and rpm-packages an also be extracted manually.

@growling
apk install

No editor?
Cat, echo, >>

Vi

Pacstrap

Fire up a live session and chroot into your hard drive. Something like:

# mount /dev/sda1 /mnt
# mount -t proc /proc /mnt/proc
# mount -t sysfs /sys /mnt/sys
# mount -o bind /dev /mnt/dev
# chroot /mnt

should do. Especially useful when you've disabled su (or directly logging in as root for that matter) as a security precaution (which I usually do). Used that method for unfucking my Arch Linux laptop a few times already.

@growling apt instead of apt-get.

@linuxxx apk add sudo