Ch 7 Quiz part 2

What two files below are the first two BASH environment files to be executed?​

/etc/profile /etc/bashrc

The ____________________ environment variable contains a list of directories to search for executable programs

Path

What two BASH environment variables represent the current working directory, and the absolute pathname of the current shell, respectively?

SHELL PWD

In an if construct, what statements are optional?​

else elif

A case construct must be ended by ____________________.

esac

To prevent a file from being cleared by the BASH shell and append output to the existing output, you can specify three > metacharacters alongside the file descriptor.

false

Any command that can take standard input and transform it into standard output is called a(n) ____________________ command.

filter

The ____________________ command takes user input from stdin and places it in a variable specified by an argument.

read

Most commands that are run by the shell are run in a separate ____________________, which is created by the current shell.

subshell

You can use the sed command to remove unwanted lines of text.

true