There's no ifconfig, netstat, route, iptables, ipchains, I think there was one more. pumpd is dead, isc-dhcpd is probably dead (replaced by systemd-dhcpd).
It's not really recognizable.
Not everybody uses systemd. There are still a few distros that deliberately don't use it or at least offer their users a choice. I personally have two Linux systems on which precisely nothing has been replaced by any part of systemd.
When was the last time you had to fiddle with anything that systemd deals with though?
ipfwadm
Some distros deprecated those tools but they're still alive.
`ipchains` was replaced by `iptables` in the early 2000's I think.
Also I got `isc-dhcp-server` running and kicking just fine. And straight `bind9`. I know `systemd` does both of these but nothing's forcing you to replace it-at least on Debian anyway.
Then, I tried pairing some Bluetooth headphones with a USB dongle that has regressed default firmware. Not only had everything changed, I hadn't even heard of the deprecated programs. The only cli tools I used from memory were "sudo", " dmesg", "grep" and "ln/rm/etc".
The docs say otherwise. Journaled filesystems and SSDs are both noted.
https://www.gnu.org/software/coreutils/manual/html_node/shre...
I wonder why it's so hard to internalize?
edit: even worse, I thought it was opposite, but it actually isn't! memetic effect?