How can the existing environment variable FOOBAR be suppressed for the execution of the script ./myscript only? A. unset -v FOOBAR;./myscript B. set -a FOOBAR="";./myscript C. env -u FO...

What is the difference between the commands test -e path and test -f path? A. They are equivalent options with the same behaviour. B. The -f option tests for a regular file. The -e option tests for a...

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.) A. ~/.bashconf B. ~/.bashrc C. ~/.bashdefaults D. ~/.bash_etc E. ~/.bash_profile

Which of the following commands puts the output of the command date into the shell variable mydate? A. mydate="$(date)" B. mydate="exec date" C. mydate="$((date))" D. mydate="date" E. mydate="${date}...

After issuing: function myfunction { echo $1 $2 ; } in Bash, which output does: myfunction A B C Produce? A. A B B. A B C C. A C D. B C E. C B A

What word is missing from the following SQL statement? __________ count(*) from tablename; (Please specify the missing word using lower-case letters only.)

By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the dir...

What output will the command seq 10 produce? A. A continuous stream of numbers increasing in increments of 10 until stopped. B. The numbers 1 through 10 with one number per line. C. The numbers 0 thr...

Which command makes the shell variable named VARIABLE visible to subshells? A. export $VARIABLE B. export VARIABLE C. set $VARIABLE D. set VARIABLE E. env VARIABLE

What word is missing from the following SQL statement? insert into tablename ________(909, 'text'); (Please specify the missing word using lower-case letters only.)