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最新Lpi认证_117-202题库(42)

2016-1-4编辑:guomu

  1.To test a shell script called myscript, the environment variable FOOBAR must be removed temporarily.

  How can this be done?

  A.unset -v FOOBAR

  B.set -a FOOBAR=""

  C.env -u FOOBAR myscript

  D.env -i FOOBAR myscript

  Answer: C

  2.Which command will print the exit value of the previous command to the screen in bash?

  A.echo $?

  B.echo $#

  C.echo $exit

  D.echo $status

  E.echo $&

  Answer: A

最新Lpi认证_117-202题库(41)
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