全局variables中更新的值在Shell脚本中丢失

有一个奇怪的问题，其中一个“全局variables”的值更新在一个函数，但更新的价值是失去了，当我检查在其他function。 任何帮助，将不胜感激。

#!/bin/bash FINAL_RESULT=""; COMMAND_RESULT=""; function init() { USERNAME="root"; DF_THRESHOLD="20"; DF_COMMAND="df -Pkh"; } function executeCommand() { local RESULT; SERVER=$(hostname); RESULT=$($1); FINAL_RESULT="$FINAL_RESULT -------------------------- Executing command : \"$1\" on \"$SERVER\" --------------------------" echo "Updating FINAL_RESULT to $FINAL_RESULT" # Updated value is present echo "$RESULT" COMMAND_RESULT="$RESULT" } function getCommandResult() { executeCommand "$1"; echo "$COMMAND_RESULT" | while read eachLine do if [ "$eachLine" != "" ]; then echo "----------- eachLine ----------- $eachLine" fi done echo "Found FINAL_RESULT as $FINAL_RESULT" # Updated values is lost } function main() { init getCommandResult "$MMGETSTATE_COMMAND" "MMGETSTATE"; } main echo "*** $FINAL_RESULT" # Even now the updated values are not found 

 local DF_Result="$( executeCommand "$1" )"