feat: Initial commit

Lab07/es4.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+declare -A acr
+
+if [ $# -ne 1 ]
+then
+	echo "Missing filename"
+	exit 1
+fi
+
+for word in `cat $1`
+do
+	if [ -v "acr[$word]" ]
+	then
+		acr[$word]=$((acr[$word]+1)) 
+	else
+		acr[$word]=1
+	fi
+done
+
+for key in ${!acr[*]}
+do
+	echo "${key}: ${acr[$key]}"
+done