remove empty lines from text file with PowerShell

powershell text-files lines
Suliman picture Suliman · Feb 10, 2012 · Viewed 138.3k times · Source

I know that I can use:

gc c:\FileWithEmptyLines.txt | where {$_ -ne ""} > c:\FileWithNoEmptyLines.txt

to remove empty lines. But How I can remove them with '-replace' ?

Answer

Randy Skretka picture Randy Skretka · Jun 12, 2012

I found a nice one liner here >> http://www.pixelchef.net/remove-empty-lines-file-powershell. Just tested it out with several blanks lines including newlines only as well as lines with just spaces, just tabs, and combinations.

(gc file.txt) | ? {$_.trim() -ne "" } | set-content file.txt

See the original for some notes about the code. Nice :)

Related questions

Determine installed PowerShell version

How can I determine what version of PowerShell is installed on a computer, and indeed if it is installed at all?

Read More
PowerShell says "execution of scripts is disabled on this system."

I am trying to run a cmd file that calls a PowerShell script from cmd.exe, but I am getting this error: Management_Install.ps1 cannot be loaded because the execution of scripts is disabled on this system. I ran …

Read More
How to run a PowerShell script

How do I run a PowerShell script? I have a script named myscript.ps1 I have all the necessary frameworks installed I set that execution policy thing I have followed the instructions on this MSDN help page and am trying …

Read More