#!/usr/local/bin/sgsh

# Parallel word frequency analysis using scatter-gather pipeline
# Split input stream to multiple processing branches simultaneously

<"$1" tee |{
	-| tr -cs '[:alpha:]' '\n' | tr '[:upper:]' '[:lower:]' | sort | uniq -c | sort -rn | head -20 |-
	-| wc -l | sed 's/^/Lines: /' |-
	-| wc -w | sed 's/^/Words: /' |-
|}