#######################
# getting help
#######################

# where are we?
get-location # windows style
pwd          # PS being somewhat compatible with UNIX

# getting help for a command
get-help pwd
man pwd # manual pages

#######################
# simple math
#######################

2*3
2/3
15+15 * 2/3

# how do we get two thirds of 15 plus 15?

(15+15) * (2/3)

#######################
# keyboard shortcuts
#######################

# autocomplete and cancel
get- <tab> <tab> <tab>
control-C

# don't worry if these are not very understandable yet

#######################
# running programs
#######################

notepad
chrome

# where is it?  right-click shortcut
cd 'C:\Program Files (x86)\Google\Chrome\Application'
chrome.exe

get-command notepad
get-command .\chrome

# mention PATH environment variables (minimal details)

#######################
# home directory
#######################

# talk about home directory
cd ~
pwd
cd Desktop
ls

#######################
# hidden files/extensions
#######################

# why don't the file names all look the same?
# talk about hidden files and extensions

#######################
# new directory
#######################

cd ~/examples

# does not exist, so create it
mkdir ~/examples

cd ~\examples # we can get back to this by hitting the up arrow
pwd

#######################
# different paths for the same file
#######################

# observe that the same folder has the same name
cd ~/examples  # powershell accepts slashes in either direction
pwd
cd L:\examples # absolute path
pwd
cd ../examples # relative path
pwd

#######################
# command arguments
#######################

# talk about arguments
cd ..
ls
get-help ls

# dash (argument), square brackets (optional), angle brackets (replace with something)
ls -Path examples
ls examples

#######################
# reading and writing files
#######################

echo howdy

echo howdy > file.txt
ls
cat file.txt
notepad file.txt # and edit something
cat file.txt

echo line2 > file.txt
cat file.txt

# what happened to the first line?

echo line1 > file.txt
echo line2 >> file.txt
echo line3 >> file.txt
cat file.txt

#######################
# moving+copying
#######################

cp file.txt file-copy.txt
ls
cat file-copy.txt
mv file-copy file-v2.txt
ls
rm file-v2.txt

#######################
# advanced file listing
#######################

echo hey > other.log
echo hey > other2.log
ls *.txt
ls *.log

mkdir sub1
mkdir sub2

ls

echo hey > sub1/f1.txt
echo hey > sub1/f2.txt
echo hey > sub1/f3.txt

echo hey > sub2/somefile
echo hey > sub2/f1.txt

ls
ls -r
tree

clear

#######################
# input
#######################

# arguments
echo this is a test
echo "this is a test"

# stdin
read-host
this is a test

# discuss difference between arguments and stdin

#######################
# pipe
#######################

# sometimes we want to use the output of one program as input to
# another

ls | measure
ls -r | measure
rm file.txt
ls -r | measure

echo "this is a test" | measure -Word
echo "this is a test" | measure -Character

# in bash, we use "wc"

#######################
# scripts
#######################

echo "ls" > test.ps1
test.ps1
notepad test.ps1
# add something
cat test.ps1
test.ps1

#######################
# python
#######################

start python
arithmetic in interactive mode
exit
run some scripts (if time)