From 20c3ec425e468108142e5650837031c520630e09 Mon Sep 17 00:00:00 2001
From: kneutron <50146127+kneutron@users.noreply.github.com>
Date: Wed, 5 Apr 2023 10:03:47 -0500
Subject: [PATCH] Add files via upload

---
 powershell/DVDs.csv                           |  3 +
 .../create-output-from-variable-csv-input.ps1 | 64 +++++++++++++++++++
 powershell/hats.csv                           |  4 ++
 powershell/pants.csv                          |  6 ++
 powershell/shirts.csv                         |  5 ++
 5 files changed, 82 insertions(+)
 create mode 100644 powershell/DVDs.csv
 create mode 100644 powershell/create-output-from-variable-csv-input.ps1
 create mode 100644 powershell/hats.csv
 create mode 100644 powershell/pants.csv
 create mode 100644 powershell/shirts.csv

diff --git a/powershell/DVDs.csv b/powershell/DVDs.csv
new file mode 100644
index 0000000..55d222a
--- /dev/null
+++ b/powershell/DVDs.csv
@@ -0,0 +1,3 @@
+Peter
+Paul
+Mary
\ No newline at end of file
diff --git a/powershell/create-output-from-variable-csv-input.ps1 b/powershell/create-output-from-variable-csv-input.ps1
new file mode 100644
index 0000000..3df6953
--- /dev/null
+++ b/powershell/create-output-from-variable-csv-input.ps1
@@ -0,0 +1,64 @@
+<# Create an output csv based on multiple variable input CSV files 
+REF: https://www.reddit.com/r/PowerShell/comments/12bxnmq/multiple_csv_filenames_used_as_columns_of_new_csv/
+
+Mod for powershell on OSX, should also run on Linux
+#>
+
+# Define the path to the directory containing the text lists
+$directoryPath = "$HOME/csv-var-inputs" # "C:\path\to\directory"
+
+# Get a list of all the csv files in the directory
+$listPaths = Get-ChildItem $directoryPath -Filter *.csv | Select-Object -ExpandProperty FullName
+
+# Create an empty hashtable to store the names
+$names = @{}
+
+# Loop through each list and add the names to the hashtable
+foreach ($listPath in $listPaths) { 
+
+# Get the names from the current list 
+    $listNames = Get-Content $listPath
+
+# Add each name to the hashtable
+    foreach ($name in $listNames) {
+
+        if ($names.ContainsKey($name)) {
+# If the name already exists in the hashtable, add the list name to the existing entry
+            $names[$name] += ", $($listPath |Split-Path -Leaf)"
+        } else {
+# If the name doesn't exist in the hashtable, create a new entry with the list name
+            $names[$name] = $($listPath |Split-Path -Leaf)
+        } # if containskey
+    } # foreach name
+} # foreach input csv
+
+# Convert the hashtable to a table and output to a CSV file
+$table = New-Object System.Data.DataTable
+
+# Add columns for the "Name" and each list
+$table.Columns.Add("Name", [string]) 
+
+foreach ($listPath in $listPaths) { 
+    $columnName = $($listPath |Split-Path -Leaf) 
+    $column = New-Object System.Data.DataColumn($columnName, [string]) 
+    $table.Columns.Add($column) 
+}
+
+# Add rows to the table for each name
+foreach ($name in $names.Keys) { 
+    $row = $table.NewRow() 
+    $row["Name"] = $name
+
+    foreach ($listPath in $listPaths) {
+        $columnName = $($listPath |Split-Path -Leaf)
+
+        if ($names[$name] -like "*$columnName*") {
+            $row[$columnName] = "X"
+        }
+    }
+    $table.Rows.Add($row)
+}
+
+$tablesort = $table |Sort-Object Name 
+$tablesort |Export-Csv "$HOME/variable-table-output.csv" -NoTypeInformation
+ls -lh "$HOME/variable-table-output.csv"
\ No newline at end of file
diff --git a/powershell/hats.csv b/powershell/hats.csv
new file mode 100644
index 0000000..d08b454
--- /dev/null
+++ b/powershell/hats.csv
@@ -0,0 +1,4 @@
+Sam
+Mary
+Trevor
+Ted
diff --git a/powershell/pants.csv b/powershell/pants.csv
new file mode 100644
index 0000000..8fa2f56
--- /dev/null
+++ b/powershell/pants.csv
@@ -0,0 +1,6 @@
+Bob
+Mary
+Jane
+Ted
+Paul
+Peter
diff --git a/powershell/shirts.csv b/powershell/shirts.csv
new file mode 100644
index 0000000..b23fa40
--- /dev/null
+++ b/powershell/shirts.csv
@@ -0,0 +1,5 @@
+Bob
+Mary
+Jane
+Ted
+Peter
\ No newline at end of file