LPI 101-500 問題練習

Question No : 1
Which of the following command sets the Bash variable named TEST with the content FOO?

• A.set TEST="FOO"
• B.TEST = "FOO"
• C.var TEST="FOO"
• D.TEST="FOO"

答えを確認する

正解:

Question No : 2
What is the output of the following command?
echo "Hello World" | tr -d aieou

• A.Hello World
• B.eoo
• C.Hll Wrld
• D.eoo Hll Wrld

答えを確認する

正解:

Question No : 3
Which of the following commands is used to change options and positional parameters for
a running Bash?

• A.history
• B.set
• C.bashconf
• D.setsh
• E.envsetup

答えを確認する

正解:

Question No : 4
Which of the following commands moves and resumes in the background the last stopped shell job?

• A.run
• B.bg
• C.fg
• D.back

答えを確認する

正解:

Question No : 5
What command will generate a list of user names from /etc/passwd along with their login shell?

• A.column -s : 1,7 /etc/passwd
• B.chop -c 1,7 /etc/passwd
• C.colrm 1,7 /etc/passwd
• D.cut -d: -f1,7 /etc/passwd

答えを確認する

正解:

Question No : 6
While editing a file in vi, the file changes due to another process.
Without exiting vi, how can the file be reopened for editing with the new content?

• A.:r
• B.:n
• C.:w
• D.:e

答えを確認する

正解:

Question No : 7
In the vi editor, which of the following commands will copy the current line into the vi buffer?

• A.c
• B.cc
• C.1c
• D.yy
• E.1y

答えを確認する

正解:

Question No : 8
CORRECT TEXT
Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)

答えを確認する

正解: mkdir, /usr/bin/mkdir

Question No : 9
Which of the following commands prints all files and directories within the /tmp directory or its subdirectories which are also owned by the user root? (Choose TWO correct answers.)

• A.find /tmp -uid root -print
• B.find -path /tmp -uid root
• C.find /tmp -user root -print
• D.find /tmp -user root
• E.find -path /tmp -user root Cprint

答えを確認する

正解:

Question No : 10
Which of the following commands determines the type of a file by using a definition database file which contains information about all common file types?

• A.magic
• B.type
• C.file
• D.pmagic
• E.hash

答えを確認する

正解:

Question No : 11
Which of the following commands displays the contents of a gzip compressed tar archive?

• A.gzip archive.tgz | tar xvf ­
• B.tar ztf archive.tgz
• C.gzip -d archive.tgz | tar tvf ­
• D.tar cf archive.tgz

答えを確認する

正解:

Question No : 12
Which of the following statements is correct regarding the command foo 1> bar?

• A.The stdout from the command foo is appended to the file bar.
• B.The stdout from the command foo overwrites the file bar.
• C.The command foo receives its stdin from the file bar.
• D.The command foo receives its stdin from the stdout of the command bar.
• E.The stderr from the command foo is saved to the file bar.

答えを確認する

正解:

Question No : 13
Which of the following commands will print the last 10 lines of a text file to the standard output?

• A.cat -n 10 filename
• B.dump -n 10 filename
• C.head -n 10 filename
• D.tail -n 10 filename

答えを確認する

正解:

Question No : 14
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)

答えを確認する

正解: HISTFILE

Question No : 15
Which of the following files, located in the user home directory, is used to store the Bash history?

• A..bash_history
• B..bash_histfile
• C..history
• D..bashrc_history
• E..history_bash

答えを確認する

正解: