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= 實作十九 Lab 19 =

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#!html
<div style="text-align: center;"><big style="font-weight: bold;"><big>基本除錯技能(一) Bash 除錯<br/>BEBUG with bash options and environment variables</big></big></div>
}}}

{{{
user@node36:~$ file `which hadoop`
user@node36:~$ bash -x `which hadoop` fs -ls
user@node36:~$ bash -x `which hadoop` jar
user@node36:~$ bash -x `which hadoop` fsck
}}}