Unix

• Vim, Git
• ssh, Rsync, scp
• Shell, Bash, Zsh
• find, FZF, ripgrep
• AWK, sed
• Autorun commands on file changes with entr
• Parse JSON from the Shell jq
  • convert output of standard unix tools to JSON with jc
  • Parse YAML from the Shell with yq

Arch

• pacman
• xrandr
• Wayland: Switching to Sway Wayland

Basic Commands

• fstab
• lsof — list open files and ports
• cron — schedule commands to run
• Converting
  • ffmpeg — convert videos
  • qpdf — transform pdfs
• Disk Tools
  • udefrag
  • LVM
  • efibootmgr — change the UEFI Boot Manager configuration
• Networking Tools
  • curl, httpie
  • dig, nc
  • socat — multipurpose relay
  • iperf
  • xfreerdp — rdp to windows machines
  • openssl
• Debugging
  • journalctl
  • systemd
  • coredumpinfo
  • strace — trace system calls
  • sysrqkey
  • systrace

Noteworthy Shell Commands

Command	Description
shred	secure delete file from disk by overwriting file
zcat, zgrep, zdiff	work directly with compressed files
locate -i {pattern}	find file from pattern from updatedb database
true	do nothing, successfully
aspell	spell checking in the terminal
man -k zathura	list all zathura man pages
bc	calculator
gnuplot	plotting with cli
inxi -Fxz	get system information
XVFB	run virtual X session on headless devices
yes	avoid interactive programs
up	interactive pipe plumbing
script	record shell script session
scriptreplay	replay recorded script
less +F	follow files (use instead of tail -f)
whatis	display one-line manual page descriptions
appropros	search the manual page names and descriptions
proxychains	force TCP connections through SOCKS proxy
blkid	list drive and partition types
lsblk -d -o name,rota	check if disk is SSD (0) or HDD (1)

Noteworthy Tools

Tool	Description
vifm	vim like file manager
vimiv	vim like image viewer
Mastodon	open source slack alternative
mitmproxy	Man in the middle proxy
luastatus	Polybar alternative

Tools to Checkout

Tool	Description
tc	slow down brothers network speed
ngrep	grep for network
tcpdump	show me packets on a port
tshark	cmdline packet analysis
tcpflow	capture & assemble TCP streams
mitmproxy	spy on SSL connectinos your programs are making
pof	identify OS of hosts connecting to you
netstat/ss/lsof/fuser	what ports are servers using
nftables	newer iptables
hping3	construct any TCP packet you want
traceroute/mtr	what servers are on the way to that server?
tcptraceroute	use tcp packets instead of icmp to traceroute
ethtool	manage physical ethernet connections & network cards
iw/iwconfig	manage wireless network settings
systctl	configure linux kernel network stack
stunnel	make a SL proxy for an insecure server
iptraf/nethogs/iftop/ntop	see what’s using bandwidth
ab/nload/iperf	benchmarking tools
python3 -m http.server	serve files from a dir
ipcalc	calculate ip’s
nsenter	enter a container process’s network namespace
sd	modern sed replacement
fd	modern find replacement
skopeo	container inspection tool