diff --git a/analysis/bigrams_freq.sh b/analysis/bigrams_freq.sh
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+++ b/analysis/bigrams_freq.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+# Convert text to lowercase and replace non-alphabetic characters with spaces, then use awk to print bigrams
+bzcat $1 | tr '[:upper:]' '[:lower:]' | tr -cs '[:alpha:]' ' ' | fold -w 1000 | sed -e 's/\b\s\+\b/ /g' | awk '{for(i=1;i<NF;i++)print $i,$(i+1)}' | sort | uniq -c > bigram_freq.txt
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