Which of the following commands print the current working directory when using a Bash shell? (Choose two.)

• A.pwd
• B.printwd
• C.echo "${pwd}"
• D.echo "${PWD}"
• E.echo "${WD}"

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Which of the following are modes of the vi editor? (Choose two.)

• A.insert mode
• B.change mode
• C.review mode
• D.edit mode
• E.command mode

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Which command must be entered before exiting vi to save the current file as filea.txt?

• A.:w filea.txt
• B.:s filea.txt
• C.%w filea.txt
  c:save filea.txt
• D.%s filea.txt

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Which of the following commands displays the path to the executable file that would be executed when the command foois invoked?

• A.whatis foo
• B.apropos foo
• C.locate foo
• D.which foo
• E.lsattr foo

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Which of the following commands updates the linker cache of shared libraries?

• A.ldconfig
• B.soconfig
• C.mkcache
• D.mkldconfig
• E.lddconfig

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