Using a variable plus a plaintext as password

Question

Hi friends
in our AD domain, we have to change the password of all user accounts.
on every user account properties, we have filled the "employee ID" field.
the manager has asked me that the passwords of every user be set in this regulation:
 his employee ID end with @aA
i mean at the end of the all passwords, these three characters must be added:  @aA
for example imagine employeeID of User1 is '123'
his password must become 123@aA
i tried with the following command but i don't know how to combine the $employeeID variable with this plaintext
@aA string
$OU = 'ou=ou-users,dc=mydomain,dc=lab'
Get-Aduser -filter * -searchbase $OU |
foreach-object {
$EmployeeID = (Get-ADuser -identity $_ -properties *).Description ;
$pass = convertto-SecureString "$emplyeeID" -asplaintext -force# my question is about the above line. i don't know what to write at the location of "$employeeID"# i tested the following but doesn't result as expected ( i know i am not correct): $pass = convertto-SecureString "$emplyeeID"+@aA -asplaintext -force
Set-ADAccountpassword -identity $_ -reset -newpassword $pass
any help please?

Answer 1

A quick look tells me that you need to study how to use strings.
help about_Quoting_Rules
https://technet.microsoft.com/en-us/library/ee692804.aspx?f=255&MSPPError=-2147217396
¯\_(ツ)_/¯
hi jrv. thanks for useful link.
i will study that & will tell the result