Duplicate values but with different strings - powershell

Question

Hello if i have 2 text files like this
file1
jack : 10
donald : 50
mark : 20
florence : 15
ariel : 50
arnold : 50
file2
jack
country : ohaio
donald
country : italy
mark
country : france
florence
country : china
ariel
country :america
arnold
country: japan
how can i to get country names of people older than 20 looping through ages in file1 to get names of people first then after i get names loop through them in file2 to get countries.// don't know how to deal with duplicate ages,this is just sample files there is a lot more values than that.
so output should be something like this:
ages
10
20
50
15
50
50
values over 20
50
50
50
names
donald
ariel
arnold
countries
italy
america
japan

Answer 1

the following code presumes the entries in the two files are in the EXACT same sequence ... and they have EXACTLY the same number of entries. [grin]
what it does ...
sets the name & location of the input files
creates the files to work with
comment out or remove this region when ready to work with real data.
reads in the 1st file as an array of single lines
reads in the 2nd file as an array of 3-line chunks
iterates thru the two collections in parallel using the index number of the 1st collection
the .GetUpperBound(0) gets the upper limit of the zero axis of the collection.
builds a PSCustomObject of the desired items
it uses the $Index to decide what to work on.
the [1] after the Country file index grabs the 2nd line of the 3-line chunk.
sends the PSCO out to the $Results collection
displays it on screen
filters the collection for the items where the .Age property is over 20
the code ...
$File_1_Name = "$env:TEMP\3N16M4_File1.txt"
$File_2_Name = "$env:TEMP\3N16M4_File2.txt"
#region >>> create files to work with
$NameAge = #'
jack : 10
donald : 50
mark : 20
florence : 15
ariel : 50
arnold : 50
'# | Set-Content -LiteralPath $File_1_Name -ErrorAction 'SilentlyContinue'
$NameCountry = #'
jack
country : ohaio
donald
country : italy
mark
country : france
florence
country : china
ariel
country :america
arnold
country: japan
'# | Set-Content -LiteralPath $File_2_Name -ErrorAction 'SilentlyContinue'
#endregion >>> create files to work with
$NameAge = Get-Content -LiteralPath $File_1_Name
# the "-ReadCount" parameter grabs lines in groups
$NameCountry = Get-Content -LiteralPath $File_2_Name -ReadCount 3
# this code presumes the two files are in the EXACT same sequence
# and that they have EXACTLY the same number of entries
$Results = foreach ($Index in 0..$NameAge.GetUpperBound(0))
{
[PSCustomObject]#{
Name = $NameAge[$Index].Split(':')[0].Trim()
Age = $NameAge[$Index].Split(':')[-1].Trim()
Country = ($NameCountry[$Index][1] -replace '(?ms).+:', '').Trim()
}
}
# show whole collection on screen
$Results
'=' * 30
# show the filtered results
$Results.Where({$_.Age -gt 20})
on screen display - the whole collection is above the line, the filtered items are below it ...
Name Age Country
---- --- -------
jack 10 ohaio
donald 50 italy
mark 20 france
florence 15 china
ariel 50 america
arnold 50 japan
==============================
donald 50 italy
ariel 50 america
arnold 50 japan