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CENG214 Assignment 4
Part 1:
Demo 1
$animals = "aardvaark;bear;cat;dog,elephant,fox,goose;hare;ibex;jaguar;kangaroo"
-split ";"
$animals -split ";" | sort-object -desc
$animals
When declaring the variable $animals and separating the data with commas, instead of semicolons;
However, when correcting the error by replacing the commas with semicolon
$animals = "aardvaark;bear;cat;dog;elephant;fox;goose;hare;ibex;jaguar;kangaroo"
-split ";"
d
Gives you this instead
kangaroo
jaguar
ibex
hare
goose
fox
elephant
dog
cat
bear
aardvaark
aardvaark
bear
cat
dog
elephant
fox
goose
hare
ibex
jaguar
kangaroo
Selecting multiple values at the the same time changes the order of how the data appears
#selecting multiple values at the same time
$animals[1,3,2]
$animals[3..7]
$animals[8..2]
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$animals[@(1,5,3)]
bear
dog
cat
dog
elephant
fox
goose
hare
ibex
hare
goose
fox
elephant
dog
cat
bear
fox
dog
Mixing the ranges with single values in an array allows you to assign multiple values to the variable
$animals[@(1,5,3)]
$animals[@(7;(1..5);0)] #mixing ranges with single values - use @ array notation
$a1,$a2,$a3=$animals[1,7,2]
#multiple assignment
"This is a1: $a1"
"This is a2: $a2"
"This is a3: $a3"
bear
fox
dog
hare
bear
cat
dog
elephant
fox
aardvaark
This is a1: bear
This is a2: hare
This is a3: cat
Demo 2
Building an array of hash tables
$student1 = @{name = ”Jean”; GPA = 2.85; Semester = 3 };
$student2 = @{name = ”La Fontaine”; GPA = 3.1; Semester = 2 };
Then copying the data into an array
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$array = $student1, $student2, $student1.clone(), $student2.clone()
And setting the key values
$student1.GPA = 4
$student2.Semester = 4
$student1.Keys
Loop though the list and key values
foreach ($myKey in $student1.keys) { "key: $mykey"
"value: " + $student1[$myKey]
"" }
out-Host -input "\nList of values"
gives you
key: GPA
value: 4
key: name
value: Jean
key: Semester
value: 3
selecting multiple keys and joining them together while also replacing certain strings
foreach($value in $student1.values)
{ $value}
$student1['gpa','name'] #same multiple selection trick as with arrays
$string1 = $student1.keys -join "***"
$string1.replace("***", "!?")
4
Jean
3
4
Jean
GPA!?name!?Semester
Demo 3
cd 'C:\users\public\Documents' #make sure that your directory is reasonable
out-file -file hello.c -force -input 'fprintf(stdout,"Hello
world\n");' #replace -force w -append
start-process -file NotePad -ArgumentList hello.c
Created the file hello.c in the specified directory
hello.c
fprintf(stdout,"Hello world\n");
After changing -force to -append it opens notepad with the appended text
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#Start up a program but wait for it to finish
remove-item hello.class
#make sure file is not there
clear
get-childItem hello.*
$process=start-process -file scp -passthru -ArgumentList
"n01361264@apollo.humber.ca:public_html/CENG214/hello.*","."
wait-process $process.id
start-process -file java -argumentList hello -NoNewWindow
start-process -file java -argumentList hello -NoNewWindow
Opens ssh terminal to apollo humber with my user id, after signing in with password program
immediately closes
Demo 4
Generates lottery tickets with random numbers for the date October 12
#Generate lottery picks for the next 10 weeks
set-location 'C:\Users\Public\Documents' #Make sure this is in the right dir
new-item -path lottery.csv -type file -forc
#replace file if it exists
out-file -filePath lottery.csv -input ""
#define excel's delimiter
out-file -filePath lottery.csv -input "sep=;" #This has to be in the 3nd line
of the file
$startDate = get-date -day 12 -month 10
for ($i = 0; $i -lt 10; $i++) {
$ticket = 1..50 | get-random -count 7
$ticket = $ticket -join ";"
$outputLine = ($startDate.addDays(7 * $i).toString() + ";" + $ticket)
out-file "lottery.csv" -input $outputLine -append
}
out-file "lottery.csv" -input "" -append #blank line
out-file "lottery.csv" -input "
;=sum(b1..b10);=average(c1..c10);=count(d1..d10)" -append
start-Process -file Excel -ArgumentList lottery.csv
Generated Excel Document lottery.csv
#Should bring up Excel.
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Demo 5
#this loop is basically the wc command written in PowerShell
#There's a bug with empty lines - why... and how do we fix it?
$lineNo=0
foreach($line in (get-content lyrics.txt)) {
$chars = $line.length
$words = (-split $line).count
$lineNo++
$output=[String]$lineNo + " " + $line + " $chars/$words"
$output
}
Prints the lyrics to the song American Pie from lyrics.txt however, when there’s an empty line it shows it
as 0/1
Added the if statement if the line length equals 0, reset word count back to 0
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$lineNo = 0
foreach ($line in (get-content lyrics.txt)) {
$chars = $line.length
$words = (-split $line).count
$lineNo++
if($line.length -eq 0) {$words=0}
$output = [String]$lineNo + " " + $line + " $chars/$words"
$output
}
Reads the file lottery.csv, if line length equals 0 puts in blank lines, if the line contains an equal symbol,
skip the line and continue, split each value with a semicolon; discards the date. It then sorts the
numbers alphabetically and prints them out from the array.
#Reading the file lottery.csv
foreach($line in (get-content lottery.csv)) {
if($line.length -eq -0) {break;}
if($values[0] -like "=*") { continue }
$values= $line -split ";"
$values= $values[1..7] | sort-object
#$values= $values[1..7] | sort-object {[int]$_} #Advanced: sort the values as
numbers
$line
$values
}
Output:
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Demo 6
Creates a new user called Aladin where his password is Open Sesame. His account will expire in the next
two months, he is also part of the group Rocketeers, had to run as Administrator to work.
$pass = ConvertTo-SecureString -string "Open Sesame" -AsPlainText
new-localUser -name "Aladin" -password $pass -AccountExpires (getdate).addMonths(2).toString()
add-localGroupMember -Group 'Rocketeers' -member 'Aladin'
Get-LocalGroupMember -group 'Rocketeers'
get-localUser | select-object -prop name,passwordExpires,enabled,lastLogon
#clean up
Remove-LocalGroupMember -group 'Rocketeers' -member 'Aladin'
remove-localUser -name 'Aladin'
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Part 2:
1.
$1stInput, $2ndInput
Write-Host ("Please enter an integer between 3 and 9: ")
$1stInput = Read-Host
Write-Host ("Please enter an integer between 100 and 250: ")
$2ndInput = Read-Host
if($2ndInput -gt $1stInput) {
Write-Host "$1stInput is Greater"
Write-Host "$2ndInput is Smaller"
}
else {
Write-Host "$2ndInput is Greater"
Write-Host "$1stInput is Smaller"
}
2.
# Display date and Username
"$env:USERNAME $((Get-Date).ToString())"
# Starting number of bottles
$NumOfBottles = 99
$Bottles = "bottles"
# Declaring data to be written into file in a string for later
$BottleToFile = ""
do {
# Print in Terminal
Write-Host "$NumOfBottles $Bottles of beer on the wall, $NumOfBottles
$Bottles of beer."
# Print to Word Doc
$BottleToFile += "$NumOfBottles $Bottles of beer on the wall, $NumOfBottles
$Bottles of beer.`n"
# When there is only 1 bottle left
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if ($NumOfBottles -eq 2) {
$Bottles = "bottle"
}
else {
$Bottles = "bottles"
}
$BottleToFile += "Take one down and pass it around, $($NumOfBottles - 1)
$Bottles of beer on the wall.`n`n"
Write-Host "Take one down and pass it around, $($NumOfBottles - 1) $Bottles
of beer on the wall.`n"
# Decrement number of bottles
$NumOfBottles -# When there are no more bottles, prints the last line and exits
if ($NumOfBottles -eq 0) {
Write-Host "No more bottles of beer on the wall, no more bottles of
beer."
Write-Host "Go to the store and buy some more, 99 bottles of beer on the
wall.`n"
$BottleToFile += "No more bottles of beer on the wall, no more bottles of
beer.`n"
$BottleToFile += "Go to the store and buy some more, 99 bottles of beer
on the wall.`n"
}
} while ($NumOfBottles -gt 0)
# Create Word Object
$Word = New-Object -ComObject Word.Application
# Will not open the Word doc
$Word.Visible = $False
# Creates the word document
$Document = $Word.Documents.Add()
# The pointer used getting the strings and typing into the word file
$Selection = $Word.Selection
# Types the data passed
$Selection.TypeText($BottleToFile)
# Specify the save Location
$SaveLoc = "$pwd\99bottles.docx"
# Save the Document
$Document.SaveAs([ref]$SaveLoc, [ref]$SaveFormat::wdFormatDocument)
# Opens the word document
$Word.Visible = $True
# Closes Word
$Word.Quit()
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