Powershell Script to rename TXT file based on certain criteria - datetime

Question

I realise it is likely the each of the requirements listed below is available individually within the forum here but I am struggling to bring it all together (if at all possible!).
Hoping someone has the patience and time to point me in right direction to make this happen.
What I need to do is the following:
Scan a directory (and all sub-directories) for a particular filename
NOTE: Whilst there are many files within the sub-directories with the filename in question, we only wish to target those in a sub-directory with a suffix of JERRY
ie. In the below example the files indicated by the arrow would be targeted
ONE\NEW1-JERRY\FILENAME.TXT <----
ONE\NEW1-TOM\FILENAME.TXT
ONE\NEW1-SYLVESTER\FILENAME.TXT
TWO\NEW2-JERRY\FILENAME.TXT <----
TWO\NEW2-TOM\FILENAME.TXT
TWO\NEW2-SYLVESTER\FILENAME.TXT
THREE\NEW3-JERRY\FILENAME.TXT <----
THREE\NEW3-TOM\FILENAME.TXT
THREE\NEW3-SYLVESTER\FILENAME.TXT
FOUR\NEW4-JERRY\FILENAME.TXT <----
FOUR\NEW4-TOM\FILENAME.TXT
FOUR\NEW4-SYLVESTER\FILENAME.TXT
When file is found matching the filename and is within the sub-directory listed above take a copy of the file (to remain in same directory) & rename based on the following criteria:
a) Created date/time
b) Certain content within the file
The content in the file is always located on ROW 8 and it is the first 9 characters
Original filename: FILENAME.txt
Finished Product: FILENAME-20121129#1300-123456789.txt
Thanks in advance!

Answer 1

you should tell us what have you tried so far and what are your mains problems...
try this :
(remove the -whatif flag to actually copy files)
#list dir & subdirs
ls c:\ -recurse |
Foreach {
#find subdirs named JERRY
if($_.PSIsContainer -and $_.name -match "JERRY"){
ls $_.fullname -filter 'FILENAME*' |
Foreach{
$fcontent=get-Content $_.FullName
$content=$fcontent[7].Substring(0,9)
$newName=Get-Date -UFormat "%Y%m%d"
$destination="$($_.Directory)\$newName#$content.txt"
write-verbose $destination
Copy-Item $_.FullName -Destination $destination -WhatIf
}
}
}