BusyBox combines tiny versions of many common UNIX utilities into a single small executable.
This may help you when you got your shell broken since busybox in independent binary which includes a lot of commands inside.
In simple words this tool can save your life ๐
Find the latest version of busybox at https://busybox.net/downloads/binaries
Then install it as the following:
wget -O /usr/bin/busybox https://busybox.net/downloads/binaries/1.31.0-defconfig-multiarch-musl/busybox-x86_64 chmod +x /usr/bin/busybox
Its done.
Use the following command to see all inbuilt commands:
busybox --list
Some examples:
busybox ln -s /lib/libc-2.12.so /lib/libc.so.6
busybox mv folder folder_old
Sources:
https://busybox.net/
https://busybox.net/about.html
https://busybox.net/downloads/binaries/