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Executing a command stored in a variable from PowerShell

ayi

<t>Executing a command stored in a variable from PowerShell</t>

ayi

<t>Here is yet another way without Invoke-Expression but with two variables 
(command:string and parameters:array). It works fine for me. Assume 
7z.exe is in the system path. 
 
$cmd = '7z.exe' $prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\changelog' & $cmd $prm ``` If the command is known (7z.exe) and only parameters are variable then this will do $prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\changelog' 
 
& 7z.exe $prm 
 
 BTW, `Invoke-Expression` with one parameter works for me, too, e.g. this works `$cmd = '& 7z.exe a -tzip "c:\temp\with space\test2.zip" "C:\TEMP\with space\changelog"' Invoke-Expression $cmd 
 
P.S. I usually prefer the way with a parameter array because it is easier to 
compose programmatically than to build an expression for Invoke-Expression.</t>