busybox: busybox (The Swiss Army Knife of Embedded Linux)
busybox:
busybox: BusyBox combines tiny versions of many common UNIX utilities into a
busybox: single small executable. It provides replacements for most of the
busybox: utilities you usually find in GNU fileutils, shellutils, etc. The
busybox: utilities in BusyBox generally have fewer options than their
busybox: full-featured GNU cousins; however, the options that are included
busybox: provide the expected functionality and behave very much like their
busybox: GNU counterparts. BusyBox provides a fairly complete environment for
busybox: any small or embedded system.
busybox: https://www.busybox.net/