powershell script to add text to existing aspx file

Question

I'm trying to find resources to help me write a powershell script to add text to an existing aspx file but can't seem to find anything. Does anybody have any suggestions or is there anybody that can help me some other way?

Update: So it's out there, I'm using version 1.0.

I have:

$lines = Get-Content foo.aspx

$lines = "<head>asfdsfsafd</head>" + $lines

$lines | Out-File "c:\documents and settings\...\foo.aspx" -Encoding utf8

but it wipes out everything originally in foo.aspx and creates <head>asfdsfsafd</head><head>asfdsfsafd</head>. How do I fix it so it keeps the original stuff in foo and add stuff to the beginning of the file rather than end?

Update:

I've figured out how to add text with:

$lines = add-content -path "C:\Documents and Settings\..\foo.aspx" -value "Warning...."

but want the text to go at the beginning of the aspx file

Update: I found a function that does what I want and I'm all set.

That is weird. Why do you want this? Could you explain it? Wouldn't be more easy to make an aspx file that reads text from a database and create something (ideally another aspx) that updates text in DB? — Oscar Foley
– Oscar Foley, Commented May 15, 2014 at 14:40

Keith Hill · Accepted Answer · 2014-05-15 16:48:01Z

1

You can get the content (array of strings) of the ASPX file using Get-Content:

$lines = Get-Content foo.aspx

Or you can get the content as a single string which is sometimes more useful if you want to use a regex that spans lines:

$content = Get-Content foo.aspx -raw

As far as changing the content, you have all sorts of options:

$content = "text before " + $content
$content += "text after"
$content = $content -replace 'regex pattern','replacement text'

And then to write back out to the file:

$content | Out-File foo.aspx -Encoding <UTF8 or ASCII or UNICODE>

edited May 15, 2014 at 16:48

answered May 15, 2014 at 15:13

Keith Hill

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10 Comments

Question_Guy Over a year ago

When I run $lines = Get-Content foo.aspx it gives me everything, as you said. However, when I run $content = Get-Content foo.aspx -raw I get Get-Content : A parameter cannot be found that matches parameter name 'raw'. At C:\....

Question_Guy Over a year ago

I think I found my answer and it's because raw is for a different version than what I'm using. I'm using version 1.0. Is there a command I can use for this version that is equivalent?

Keith Hill Over a year ago

1.0 really? :-) You can use $content = [io.file]::ReadAllText("$pwd\foo.aspx").

Question_Guy Over a year ago

That works but it does what Get-Content foo.aspx does and gives me everything. It's not spanning lines?

Keith Hill Over a year ago

Yeah there was a quote missing - fixed. And yeah, replacement text replaces what is specified by regex pattern. WRT single string object, yes every line, separated by CRLF chars, is put into a single string. That is necessary if you have regex that matches text across separate lines.

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