# Get the 1st service.
$service = Get-Service | select-object -first 1
# or
$service = (Get-Service)[0]

# Retrieve its name. I'm using this syntax deliberately for the demonstration.
$name = $service.name

# Let's test the following syntaxes:
'The name of the service is $name'
The name of the service is $name
# Note that the simple quote does not interpret variables
# Simple quote processing is faster,
# Powershell doesn't have to worry about variable interpretation.

# Was the $name variable essential?
"The name of the service is $service.name"
'The name of the service is $service.name'
# The simple quote remains true to itself
# The object.property principle does not work with "" quotes,
# In this case it displays the typename_of_the_object.name.

# You need to use the $() syntax for this to work (except in simple quote).
# $() is a sub-expression, the content is evaluated and the result sent:
"The service name is $($service.name)"
'The name of the service is $($service.name)'
# Personally, I prefer to use the -f format operator, which is also recommended.
The service name is {0}' -f $service.name

# To protect a character, use in this context `,
# in other contexts (operators...), it's \ :
"The service name is `$name"

# How to pass a non-Powershell command with characters
# characters that make sense in Powershell, such as (){} $
# Let's test the following command, which defines the delay during which the OS choice menu
# menu is available during a multiboot (the default value is already 30 seconds):
bcdedit /set {bootmgr} timeout 30

# To solve the problem
# Protect each character that causes trouble:
bcdedit /set `{bootmgr`} timeout 30
# or use --% (stop-parsing token) which tells Powershell to treat
# all the following characters as simple characters:
bcdedit --% /set {bootmgr} timeout 30
# But there may be a problem, for example :
$time = 30
bcdedit --% /set {bootmgr} timeout $time
# The variable is no longer interpreted, so use protections in this context:
bcdedit /set `{bootmgr`} timeout $time

# Why do these two syntaxes work?
Get-service spooler
Get-service 'spooler'