105.1 Customize And Use The Shell Environment

Question 1

List all shell options.

Answer 1

set -o

Question 2

Turn on the allexport shell option just for this session.

Answer 2

set -o allexport

Question 3

Turn off the noclobber shell option just for this session.

Answer 3

set +o noclobber

Question 4

Turn on the noglob shell option permanently for all shell logins.

Answer 4

vi ~/.profile

set -o noglob

Question 5

Display function names and contents.

Answer 5

declare -f

Question 6

Display function names.

Answer 6

declare -F

Question 7

A more concise form of if/then statements using && or ||.

Answer 7

Command line lists

Question 8

Command to remove an alias.

Answer 8

unalias [name]

Question 9

Remove declared functions and shell variables.

Answer 9

unset [name]

Question 10

The primary prompt environment variable for setting the prompt value and formatting.

Answer 10

PS1

Question 11

Run ls without an alias.

Answer 11

\ls

Question 12

Location of user profile variables.

Answer 12

~/.bash_profile

Question 13

Location of user login commands.

Answer 13

~/.bash_login

Question 14

Location of global profile variables like $PATH.

Answer 14

~/.profile

Question 15

Location of shell variables.

Answer 15

~/.bashrc

Not a login script, runs when starting a new shell.

Question 16

Full path to the first login script to run.

Answer 16

/etc/profile

Question 17

Full path to the configuration file for ~/.bashrc.

Answer 17

/etc/bash.bashrc

Question 18

Location of the standard Bash logout script.

Answer 18

~/.bash_logout