PowerShell configuration with an rc-like file - powershell

Question

What script and where I should write in order to define:
alias for ll="ls -l"
alias/function cd = "original cd; ll"
So, my question has to parts where is the rc files of the Power Shell on Windows 7 and how to alias ll to ls -l and cd to cd; ll?

Answer 1

Create a file in the place where the power shell points when you type $profile and press enter, if it does not exist. (For more info look here.)
Also I have found a lots of good examples next to the powershell.exe in my system there is an example folder, where there is a file named profile.ps1 with the following code:
set-alias cat get-content
set-alias cd set-location
set-alias clear clear-host
set-alias cp copy-item
set-alias h get-history
set-alias history get-history
set-alias kill stop-process
set-alias lp out-printer
set-alias ls get-childitem
set-alias mount new-mshdrive
set-alias mv move-item
set-alias popd pop-location
set-alias ps get-process
set-alias pushd push-location
set-alias pwd get-location
set-alias r invoke-history
set-alias rm remove-item
set-alias rmdir remove-item
set-alias echo write-output
set-alias cls clear-host
set-alias chdir set-location
set-alias copy copy-item
set-alias del remove-item
set-alias dir get-childitem
set-alias erase remove-item
set-alias move move-item
set-alias rd remove-item
set-alias ren rename-item
set-alias set set-variable
set-alias type get-content
function help
{
get-help $args[0] | out-host -paging
}
function man
{
get-help $args[0] | out-host -paging
}
function mkdir
{
new-item -type directory -path $args
}
function md
{
new-item -type directory -path $args
}
function prompt
{
"PS " + $(get-location) + "> "
}
& {
for ($i = 0; $i -lt 26; $i++)
{
$funcname = ([System.Char]($i+65)) + ':'
$str = "function global:$funcname { set-location $funcname } "
invoke-expression $str
}
}
Also take into account the following problem. You may have the following error while executing the file located in $profile:
"Microsoft.PowerShell_profile.ps" cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details.
Solution:
Check the current execution-policy
PS C:\Windows\System32> Get-ExecutionPolicy
Restricted
PS C:\Windows\System32>
To change the execution policy to allow PowerShell to execute scripts from local files, run the following command:
PS C:\Windows\System32> Set-Executionpolicy RemoteSigned -Scope CurrentUser