问题
I am using PowerShell 3.
What is best practice for concatenating files?
file1.txt + file2.txt = file3.txt
Does PowerShell provide a facility for performing this operation directly? Or do I need each file's contents be loaded into local variables?
回答1:
If all the files exist in the same directory and can be matched by a simple pattern, the following code will combine all files into one.
Get-Content .\File?.txt | Out-File .\Combined.txt
回答2:
I would go this route:
Get-Content file1.txt, file2.txt | Set-Content file3.txt
Use the -Encoding parameter on Set-Content if you need something other than ASCII which is the default for Set-Content.
回答3:
a generalization based on @Keith answer:
gc <some regex expression> | sc output
回答4:
If you need more flexibility, you could use something like
Get-ChildItem -Recurse *.cs | ForEach-Object { Get-Content $_ } | Out-File -Path .\all.txt
来源：https://stackoverflow.com/questions/16952138/concatenate-files-using-powershell