A little collection of cool unix terminal/console/curses tools
Just a list of 20 (now 28) tools for the command line. Some are little-known, some are just too useful to miss, some are pure obscure -- I hope you find something useful that you weren't aware of yet! Use your operating system's package manager to install most of them. (Thanks for the tips, everybody!)
dstat & sar
iostat, vmstat, ifstat and much more in one.

slurm
Visualizes network interface traffic over time.

vim & emacs
The real programmers' editors.

screen, dtach, tmux, byobu
Keep your terminal sessions alive.

multitail
See your log files in separate windows.

tpp
Presentation ("PowerPoint") tool for terminal.

xargs & parallel
Executes tasks from input (even multithread).

restic & borgbackup
Encrypting backup tools.

nethack & slash'em
Still the most complex game on the planet.

lftp
Does FTPS. Can mirror, kinda like rsync.

ack, ag (silver searcher), pt
A better grep for source code.

calcurse & remind + wyrd
Calendar systems.

newsbeuter & rsstail
Command line RSS readers.

powertop
Helps conserve power on Linux.

tig
A console UI for git.

qalc
The best calculator. Ever. (For scripts too.)

htop, atop & glances
Process, memory and io monitoring.

ttyrec & ipbt
Record and play back terminal sessions.

rsync
Keeps filesystems in sync over SSH.

mtr
traceroute 2.0.

socat & netpipes
Directing stuff easily in and out of sockets.

iftop, iptraf & nethogs
To see where your traffic goes.

siege & tsung
Command line load test tools.

ledger
Terminal-based accounting package.

taskwarrior
Todo management in the terminal.

curl
Everybody's favorite HTTP toolbox.

rtorrent & aria2
Command line torrent downloaders.

ttytter & earthquake
Nice trendy Twitter clients :)

vifm & ranger
Alternatives to the midnight commander.

cowsay & sl
I just couldn't resist. :o)

cloc
Counts lines of code.

ipcalc
For network assignments.

Discussion of this post on Hacker News
- that's the place to get into nice old-school FidoNet-style flame wars about the important things in life,
like whether or not tmux
is better than screen
, is parallel
better than xargs
,
whether or not ifconfig
is a power tool,
or should this list include somebody's once-used tool for converting old Pascal code to C or something. :o)
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