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TESTOUT LINUX PRO EXAM (ACTUAL EXAM) WITH 150+ QUESTIONS WITH VERY ELABORATED ANSWERS CORRECTRY WELL ORGANIZED LATEST 2024 – 2025 ALREADY GRADED A+ $13.49
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TESTOUT LINUX PRO EXAM (ACTUAL
EXAM) WITH 150+ QUESTIONS WITH VERY
ELABORATED ANSWERS CORRECTRY WELL
ORGANIZED LATEST 2024 – 2025 ALREADY
GRADED A+
nano editor - ANSWERS-To start the editor, type nano at the shell prompt.
The nano editor is simpler to use than the vi editor.Common keystroke shortcuts
are listed at to the bottom of the nano interface.A caret (^) in the shortcut means
press and hold the Ctrl key.'M-' listed in the shortcut means press and hold the
Meta key. On modern keyboards, the Alt or Esc key is substituted for the Meta
key.Ctrl+G (listed as ^G) displays the full help text, which includes a full list of
shortcuts.Prompts are displayed when user input is needed.The Home, End,
PgUp, PgDn and arrow keys move the cursor in the same was as other common
editors.
,^G(Ctrl+G) - ANSWERS-Displays the help text, which includes a list of all keyboard
shortcuts.
^X(Ctrl+X) - ANSWERS-Closes the current buffer or exits from nano.
^O(Ctrl+O) - ANSWERS-Writes the current buffer (or the marked region) to disk.
sh - ANSWERS-The Bourne shell is the oldest Linux shell, but is not widely used.
This shell was developed for UNIX in the 1970s.
bash - ANSWERS-The Bourne-again shell (Bash) is the default shell used by most
Linux distributions. It uses commands similar to a UNIX shell. The Bash includes:
Command and file name completion when pressing the Tab key
Command history
zsh - ANSWERS-The Z Shell (zsh) is an improved version of Bash and is available on
many Linux distributions.
shh - ANSWERS-The Bourne shell (sh) is an earlier version of bash, and is similar in
many ways. The sh shell was originally created by Steve Bourne.
ksh - ANSWERS-The Korn shell (ksh) provides scripting features not found in Bash.
Ksh was developed by David Korn.
,csh - ANSWERS-The C-shell (csh) uses syntax similar to the syntax used in the C
programming language.
tcsh - ANSWERS-The tcsh shell is an improved version of csh. It offers command
line editing and completion features that are not available in csh.
Linux shell - ANSWERS-a program that traditionally provides the text user
interface (TUI) for Linux. The term shell is descriptive, since it is considered an
outer layer of the operating system. The shell is the interface between you, a user
or administrator, and the internal parts of the operating system including its very
core which is the kernel. The shell's main function is to read and parse your
commands and then to execute them through interactions with the Linux kernel.
From the Console (The keyboard and monitor attached to a computer running
Linux) - ANSWERS-Press the following key combinations:
Ctrl+Alt+F1 (in some Linux distributions, Alt+F1) will start or switch to the first
Linux shell session.
Ctrl+Alt+F2 through Ctrl+Alt+F6 (in some Linux distributions, Alt+F2 through
Alt+F6) will switch to the second through sixth shell sessions.
While Linux distributions will vary, in most cases when a GUI is installed, it will use
the first console session. Use Ctrl+Alt+F1 to switch to a graphical login screen. If
you are already logged in, Ctrl+Alt+F7 will switch to the desktop GUI.
From a desktop GUI - ANSWERS-Open a terminal session from the applications
menu.
, /etc/shells - ANSWERS-If a shell type is installed, it will be listed in the /etc/shells
file. You can switch to any shell by typing the shell's name. For example, type ksh
within any shell to switch to the Korn shell.
echo $SHELL - ANSWERS-The echo $SHELL command returns the default or
preferred shell. The environment $SHELL holds the user's preferred shell which is
typically set in /etc/passwd. For example, if bash is the user's preferred shell,
$SHELL will hold the value, /bin/bash. The preferred shell does not change when
you switch shell types.
echo $0 - ANSWERS-The echo $0 command can be used to return the current
shell type. The special variable $0 normally holds the command used to start a
script. A shell session is initiated by a script. Consequently, $0 will hold the name
of the script which is consistent with the shell type. For example, $0 in a console
session running bash might hold the value -bash, $0 in a terminal application
opened from a desktop menu might hold the value bash. When you type ksh, the
ksh script is run, a Korn shell session is opened and $0 will hold the value ksh.
all shells share some common characteristics: - ANSWERS-The shell provides a
command line interface that allows the user to interact with the Linux kernel.
A Linux system can run multiple shell sessions at the same time.
One shell session can run within another shell session. This may be done
interactively, such as when a user starts a second shell from the first shell's
command line, or automatically, by scripts or programs.
Shells use configuration files to establish their operating environments.
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