What does the + signify at the end of the 10-digit file permissions on data.txt? ls -l -rwx------+ 1 user1 u1 0 Oct 1 10:00 data.txt

In Bash, what does the comment below do? cd -

What does this command do? cat > notes -

What is the output of: VAR="This old man came rolling" echo "\${VAR//man/rolling}"

The shell looks at the contents of a particular variable to identify which programs it can run. What is the name of this variable?

What does this command sequence do? cat >notes -

What does this bash statement do? (( $a == $b ); echo $?

What would be in out.txt? cat < in.txt > out.txt

How could you get a list of all .html files in your tree?

Suppose your current working directory is your home directory. How could you run the script demo.sh that is located in your home directory? Find three correct answers. A. /home/demo.sh B. ./demo.sh C. ~/demo.sh D. bash /home/demo.sh E. bash demo.sh

What line of Bash script probably produced the output shown below? The date is: Sun Mar 24 12:30:06 CST 2019!