尝试运行一个简单的 shell 脚本，该脚本由一组命令组成，我经常执行这些命令来设置我的 Hadoop 环境。首先，我在手动执行这些命令之前通过“ ssh localhost ”进行连接，我想自动化这个过程，我正在执行以下操作，这会导致下面列出的错误。请注意，我可以从命令提示符手动执行这些命令。请帮帮我。
我做了什么
$sudo chmod 777 hadoop-startup-script.sh
$ssh localhost
$./hadoop-startup-script.sh
这会导致以下错误
(~($))sh hadoop-startup-script.sh
hadoop-startup-script.sh: 2: cd: can't cd to /home/hadoop/hadoop-0.20.204.0
hadoop-startup-script.sh: 3: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 4: hadoop-startup.sh: bin/start-all.sh: not found
hadoop-startup-script.sh: 5: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 6: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 7: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 8: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 9: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh: 10: hadoop-startup.sh: bin/hadoop: not found
hadoop-startup-script.sh 的内容
#! /bin/bash
cd ~/hadoop-0.20.204.0
bin/hadoop namenode -format
bin/start-all.sh
bin/hadoop fs -mkdir input
bin/hadoop fs -mkdir input/oreilly
bin/hadoop fs -put /home/hadoop/Dropbox/hadoop/hadoop-inputs/oreilly-programmingPig/*.* /user/hadoop/input/oreilly/
bin/hadoop fs -put /home/hadoop/Dropbox/hadoop/hadoop-inputs/oreilly-programmingPig/NYSE_dividends /user/hadoop/input/oreilly/
bin/hadoop fs -put /home/hadoop/Dropbox/hadoop/hadoop-inputs/oreilly-programmingPig/baseball /user/hadoop/input/oreilly/
bin/hadoop fs -put /home/hadoop/Dropbox/hadoop/hadoop-inputs/oreilly-programmingPig/NYSE_daily /user/hadoop/input/oreilly/