Passing a variable to a powershell script via command line

Question

I am new to powershell  and trying to teach myself the basics   I need to write a ps script to parse a file  which has not been too difficult   Now I want to change it to pass a variable to the script   that variable will be the parsing string   Now  the variable will always be 1 word  and not a set of words or multiple words   This seems uber simple yet is posing a problem for me   Here is my simple code    a   Read-Host Write-Host  a   When I run the script from my command line the variable passing doesn t work     test ps1 hello   test ps1  hello    test ps1 -a  hello    test ps1 -a hello   test ps1 -File  hello    As you can see  I have tried many methos with no success  of the script taking the value an outputting it   The script does run  and waits for me to type a value  and when I do  it echos that value   I just want it to output my passed in value  what minuscule thing am I missing   Thank you

User · Answer

Make this in your test ps1  at the first line  param   string  a    Write-Host  a   Then you can call it with    Test ps1  Here is your text    Found here  English

User · Answer

Passed parameter like below   Param  parameter Mandatory  true     HelpMessage  Enter name and key values        Name      Key         script name ps1 -Name name -Key key

User · Answer

Declare the parameter in test ps1    Param                   Parameter Mandatory  True Position 1                    string  input dir                   Parameter Mandatory  True                    string  output dir                   switch  force    false                     Run the script from Run OR Windows Task Scheduler   powershell exe -command   amp  C  FTP DATA test ps1 -input dir C  FTP DATA IN -output dir C  FTP DATA OUT    or    powershell exe -command   amp   C  FTP DATA test ps1  -input dir  C  FTP DATA IN  -output dir  C  FTP DATA OUT

User · Answer

Using param to name the parameters allows you to ignore the order of the parameters   ParamEx ps1    Show how to handle command line parameters in Windows PowerShell param     string  FileName     string  Bogus   write-output  This is param FileName    FileName write-output  This is param Bogus    Bogus   ParaEx bat  rem Notice that named params mean the order of params can be ignored powershell -File   ParamEx ps1 -Bogus FooBar -FileName  c  windows notepad exe

User · Answer

Here s a good tutorial on Powershell params   PowerShell ABC s - P is for Parameters  Basically  you should use a param statement on the first line of the script  param  type  p1      type  p2           or use the  args built-in variable  which is auto-populated with all of the args

[powershell] Passing a variable to a powershell script via command line

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