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When the command echo $$ outputs 12942, what is the meaning of 12942?
When the command echo $$ outputs 12942, what is the meaning of 12942?A . It is the process ID of the echo command.B . It is the process ID of the current shell.C . It is the process ID of the last command executed.D . It is the process ID...
What single command will show you the running color depth while in X?
X is running okay but you're concerned that you may not have the right color depth set. What single command will show you the running color depth while in X?A . xcdB . xcdepthC . xwininfoD . xcolordepthE . cat /etc/X11View AnswerAnswer: C
What output will the command seq 10 produce?
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 through 9 with one number per line.D . The number 10 to standard output.View...
Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)
Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)A . usermodB . passwdC . chattrD . chageE . chshView AnswerAnswer: A,B,D
Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?
Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?A . *B . -C . sD . xView AnswerAnswer: D
What is the main difference between the batch and at commands?
What is the main difference between the batch and at commands?A . The batch command will run multiple times.The at command will only run once.B . The batch command will run when system load is low. The at command runs at a specific time.C . The at command reads commands...
Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?
Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?A . 0 * * * 30 myscriptB . 30 * * * 6 myscriptC . 30 0 * * 0 myscriptD . 30 0-23 * * 0 myscriptE . 0 0-23 * *...
Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)
Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)A . ~/.bashconfB . ~/.bashrcC . ~/.bashdefaultsD . ~/.bash_etcE . ~/.bash_profileView AnswerAnswer: B,E
Which of the following commands lists all defined variables and functions within Bash?
Which of the following commands lists all defined variables and functions within Bash?A . envB . setC . env -aD . echo $ENVView AnswerAnswer: B
What is the conventional purpose of Linux UIDs that are lower than 100?
What is the conventional purpose of Linux UIDs that are lower than 100?A . They are reserved for super user accounts.B . They are reserved for the system admin accounts.C . They are reserved for system accounts.D . They are unused, aside from 0, because they are targets of exploits.E...
