How do I bulk upload documents using PowerShell and extract metadata from file name?

I have a requirement to upload a bunch of documents into a document library. Based on the content type, the rules of updating the metadata is different...the one giving me trouble is to extract the metadata from the file name. If I have a file name like
"part1_part2_part3.pdf" how do I extract part1, part2, part3 and tag each document being uploaded into SharePoint, using PowerShell? I have searched and have not been able to find anything to get me started.
Has anyone done this before? Or is there a blog I can take a look at? Thanks

You will have to write a PS script encompassing this logic.
Read files from the folder using
Get-Item cmdlet
Determine the content type based on the path or filename.
Split the file name to extract the tag names.
If the metadata fields in the content type is a managed metadata field, check whether the term exists and set it.
Updating SharePoint Managed Metadata Columns
with PowerShell
This post is my own opinion and does not necessarily reflect the opinion or view of Slalom.

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How can I extract metadata from file names?

If I want to extract metadata from file names? How can I do that? I want to read through the file names and when I get to a certain character ("-"), I can take the string just before that character and store it in a column in SharePoint. Is this
do-able through scripting?

If I want to extract metadata from file names? How can I do that? I want to read through the file names and when I get to a certain character ("-"), I can take the string just before that character and store it in a column in SharePoint.
Is this do-able through scripting?
You should be able to leverage the split method.
In PowerShell It would look like:
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$file = "myawesome_filename-Month-Day-Year-Ect.doc"
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write-host $item
#Outputmyawesome_filename
Month
Day
Year
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$file[0]
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myawesome_filename
Entrepreneur, Strategic Technical Advisor, and Sr. Consulting Engineer - Strategic Services and Solutions Check out my book - Powershell 3.0 - WMI: http://amzn.to/1BnjOmo | Mastering PowerShell Coming in April 2015!

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HI,
Is the name of the image or the sub folder name the issue?
I have the images with the name as "ab_3f_wht_ist_small_gif.gif". folder name "User_image"
There are underscores on the file name, but there is no space. When I add the file from the library (using the UI), the image is getting added.
But adding through the powershell is giving the issue.
I have checked this:
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/e810ad03-81ef-4fa6-aab8-ddc896a13ebf/getting-error-during-uploading-a-document-using-powershell?forum=sharepointdevelopmentprevious
but did not help.
Thanks

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Here is a version that works for one folder and produces consistent CSV files. It only enumerates the first 66 tags but that covers 99% of all tags.
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¯\_(ツ)_/¯

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public void send(byte[] input)
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Duplicate message in General deleted. Please do not post the same question in more than one forum.
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How do I bulk upload documents using PowerShell and extract metadata from file name?

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