题目内容

如在终端中执行echo $PATH后输出为/usr/lib/qt-3.3/bin:/usr/local/sbin:/usr/sbin:/sbin，则当输入的命令是外部命令时查找的顺序是

A. 先/usr/lib/qt-3.3/bin，再/usr/local/sbin，再/sbin
B. 先/sbin，再/usr/local/sbin，再/usr/lib/qt-3.3/bin
C. 只查找/sbin
D. 只查找/sbin/usr/lib/qt-3.3/bin

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更多问题

终端中先后输入并执行以下命令，最后的运行结果是什么？name="Tom"echo 'His name is $name'

A. His Tom is Tom
B. His name is $name
C. His name is Tom
D. His name is name

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A. Today is this_day
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A. PATH
B. HISTSIZE
C. LDPATH
D. SYSPATH

以下哪个环境变量存储了历史命令列表的大小？

A. LDPATH
B. HISTSIZE
COMMANDSIZE
D. SIZE