[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

9.2

modifying a text file but replaceing strings in its lines

Asked by SnowFlake in Powershell

Tags: powershell forEach-Object replace

say I have a file c:\test.text with the following text lines:
      A B B C C D
    //B A B C E D
    //C B B B F G

and I want to change all lines to begin with a // except the line that begins with $myChar
what I need is to actually change the file itself (for later usage).

notes: the actual task would involve testing that use regular expressions.
I tried using Get-Content followed by ForEach-Object
that had multiple -replace staements in it and a Set-Content at the end but got wierd results like lines that got doubled or no changes happening at all.

how am I supposed to operate on the $_   ?
is the expression (of the forEach-Object ) expected to return an object or a string and how ?
I suppose I sould be able to make several changes to the same line of text but not sure how.
$line = $_
$line = $line -replace "A" "B"

does this even change the current line at all ?
can I (or should I) assign the result back to $_ ?

what is being passed to the next step of the pipeline ?

Eyal
[+][-]11/06/09 04:18 PM, ID: 25764267Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]11/06/09 11:23 PM, ID: 25765299Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]11/07/09 04:02 AM, ID: 25765941Accepted Solution

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

About this solution

Zone: Powershell
Tags: powershell forEach-Object replace
Sign Up Now!
Solution Provided By: peter_field
Participating Experts: 1
Solution Grade: A
 
 
Loading Advertisement...
20091111-EE-VQP-89 - Hierarchy / EE_QW_3_20080625