Cheat Sheet Old Linux Commands And Their Modern Replacements by Seth Kenlon

What are some old network commands and their newer counterparts?
Some old network commands and their newer counterparts include:

Old New
nslookup dig @192.168.1.1 example.com A +noall +answer +nocmd
nslookup (ptr) dig -x @192.168.1.1 example.com +noall +answer +nocmd
ifconfig ip address
route -n ip route list
netstat -n --tcp --listen ss --numeric --tcp --listen

What are some old utilities and their newer counterparts?
Some old utilities and their newer counterparts include:

Old New
fgrep 'tux' /etc/passwd grep -F 'tux' /etc/passwd
egrep '^[fj]' /etc/passwd grep -E '^[fj]' /etc/passwd
du dust
find . -iname "*txt" fd txt
man cheat, tealdeer
ls exa
cat bat

What are some old packaging utilities and their newer counterparts?
Some old packaging utilities and their newer counterparts include:

Old New
yum dnf
apt-get apt
pip python3 -m pip
repoquery dnf repoquery