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www/eps/hpr2719/hpr2719_bash17_ex2.sh

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+#!/bin/bash
+
+#-------------------------------------------------------------------------------
+# Example 2 for Bash Tips show 17: Array concatenation
+#-------------------------------------------------------------------------------
+
+#
+# Make three indexed arrays
+#
+declare -a a1 a2 a3
+
+#
+# Seed the random number generator
+#
+RANDOM=$(date +%N)
+
+#
+# Place 10 random numbers between 1..100 into the arrays a1 and a2
+#
+for ((i=1; i<=10; i++)); do
+    a1+=( $(( ( RANDOM % 100 ) + 1 )) )
+    a2+=( $(( ( RANDOM % 100 ) + 1 )) )
+done
+
+#
+# Show the results
+#
+echo "a1: ${a1[*]}"
+echo "a2: ${a2[*]}"
+
+#
+# Concatenate a1 and a2 into a3 and show the result
+#
+a3=( "${a1[@]}" "${a2[@]}" )
+echo "a3: ${a3[*]}"