Remove Top Line of Text File with PowerShell

Question

I am trying to just remove the first line of about 5000 text files before importing them.

I am still very new to PowerShell so not sure what to search for or how to approach this. My current concept using pseudo-code:

set-content file (get-content unless line contains amount)

However, I can't seem to figure out how to do something like contains.

Answer 1

While I really admire the answer from @hoge both for a very concise technique and a wrapper function to generalize it and I encourage upvotes for it, I am compelled to comment on the other two answers that use temp files (it gnaws at me like fingernails on a chalkboard!).

Assuming the file is not huge, you can force the pipeline to operate in discrete sections--thereby obviating the need for a temp file--with judicious use of parentheses:

(Get-Content $file | Select-Object -Skip 1) | Set-Content $file

... or in short form:

(gc $file | select -Skip 1) | sc $file