spark: add word frequency counter utility

wizard-work/spark/wordfreq.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+"""Word frequency counter - counts and sorts unique words in text files."""
+import sys
+from collections import Counter
+import re
+
+def count_words(text):
+    """Extract words and count frequencies."""
+    words = re.findall(r"\b[a-zA-Z]+'?[a-zA-Z]*\b", text.lower())
+    return Counter(words)
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: wordfreq.py <file>", file=sys.stderr)
+        sys.exit(1)
+    
+    with open(sys.argv[1], 'r') as f:
+        text = f.read()
+    
+    counts = count_words(text)
+    
+    for word, count in sorted(counts.items(), key=lambda x: (-x[1], x[0])):
+        print(f"{count:6d} {word}")
+
+if __name__ == '__main__':
+    main()