#### Lesson 1

OS'es
UNIX: history and flavors
Filesystem hierarchy
Absolute and relative paths

date
echo
ls
mkdir
touch
cp
mv
rm
rmdir
pwd
cd
alias

Streams: standard input/output

less
cat
cat vs. less
wc
cut
sort
uniq
grep
paste
sed

Editors

vim


#### Lesson 2

Streams revision
standard input/output/error

; && ||

Shell globbing: * ? [] [-]

Users
Permissions
chmod
chown

Emacs

Org mode


#### Lesson 3

diff
dotfiles
ls -a

whereis
which
Environmental variables
alter PATH

Shell scripting

globbing

ln -s

Git