Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct? A. /usr/bin/prog is executed with a nice level of -5. B. /usr/bin/prog is executed with a nice leve...

From a Bash shell, which of the following commands directly executes the instruction from the file /usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.) A. source /usr/loc...

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter? A. sed '/bob/Bob' letter > newletter B. sed s/bob/Bob/ ...

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

Which grep command will print only the lines that do not end with a / in the file foo? A. grep '/$' foo B. grep '/#' foo C. grep -v '/$' foo D. grep -v '/#' foo

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

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)

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

In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows? A. By using the command :repeat followed by the num...

What does the ? symbol within regular expressions represent? A. Match the preceding qualifier one or more times. B. Match the preceding qualifier zero or more times. C. Match the preceding qualifier ...