?? array-function.sh
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#!/bin/bash# array-function.sh: Passing an array to a function and...# "returning" an array from a functionPass_Array (){ local passed_array # Local variable. passed_array=( `echo "$1"` ) echo "${passed_array[@]}" # List all the elements of the new array #+ declared and set within the function.}original_array=( element1 element2 element3 element4 element5 )echoecho "original_array = ${original_array[@]}"# List all elements of original array.# This is the trick that permits passing an array to a function.# **********************************argument=`echo ${original_array[@]}`# **********************************# Pack a variable#+ with all the space-separated elements of the original array.## Note that attempting to just pass the array itself will not work.# This is the trick that allows grabbing an array as a "return value".# *****************************************returned_array=( `Pass_Array "$argument"` )# *****************************************# Assign 'echoed' output of function to array variable.echo "returned_array = ${returned_array[@]}"echo "============================================================="# Now, try it again,#+ attempting to access (list) the array from outside the function.Pass_Array "$argument"# The function itself lists the array, but...#+ accessing the array from outside the function is forbidden.echo "Passed array (within function) = ${passed_array[@]}"# NULL VALUE since this is a variable local to the function.echoexit 0
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