Copy table from .txt file to a new .txt file by skipping certain lines - powershell

Question

I have one table (.txt file) in this form:
Table: HHBB
Displayed Fields: 1 of 5 Fixed Columns: 4
-----------------------------------------------------------------------------
| |ID |NAME |Zähler |Obj |ID-RON |MANI |Felder |Nim
|----------------------------------------------------------------------------
| |007 |Kano |000001 |Lad |19283712 | |/HA |
| |007 |Bani |000002 |Bad |917391823 | |/LA |
I want to save this table into another .txt file but just want to skip the lines that match Table and Displayed Fields for example. What I tried:
If ([string]::IsNullOrWhitespace($tempInputRecord2) -or $_ -match "=|Table:|Displayed|----") {
continue
}
How can I do that?
And another question:
What is the best way to write the lines one by one into a new text file?

Answer 1

So you just want to remove the lines which start with Table: or Displayed Fields: and output results to a new file? Use Where-Object to filter lines, and Out-File to write them to the file:
Get-Content test.txt |
Where-Object { $_ -notlike "Table:*" -and $_ -notlike "Displayed Fields:*" } |
Out-File test2.txt

Answer 2

There are many ways for simple tasks:
If the header to skip occurs only once:
Get-Content test.txt|Select-Object -Skip 2|Set-Content test2.txt
A similar approach to yours with -notmatch and RegEx alternation
Get-Content test.txt|Where-Object {$_ -notmatch '^Table:|^Displayed Fields:'}|Set-Content test2.txt
When forcing a complete read in to memory by enclosing in parentheses you can write to the same file:
(Get-Content test.txt)|Select-Object -Skip 2|Set-Content test.txt