ITN 170 Chapter 3

The full pathname to a certain file or directory starting from the root directory.

absolute pathway

A file that contains machine language (binary 1s and 0s) and stores information (such as common functions and graphics) used by binary compiled programs.

binary data files

A Linux command used to display (or concatenate) the entire contents of a text file to the screen

cat commaned

A Linux command used to change the current directory in the directory tree.

cd (change directory) command

The vi editor is called a bimodal editor because it functions in one of two modes: ___________ and _______________.

command mode & insert mode

The joining of text together to make one larger whole. In Linux, words and strings of text are joined together to form a displayed file.

concatenation

A special file on the filesystem used to organize other files into a logical tree structure.

directory

A variant of the grep command used to search files for patterns, using extended regular expressions.

egrep command

To display lines of text that match extended regular expressions, you must use the ________.

egrep command

A file that can be executed by the Linux operating system to run in memory as a process and perform a useful function.

executable program

A variant of the grep command that does not allow the use of regular expressions.

fgrep command

A Linux command that displays the file type of a specified filename.

file command

The process of using wildcard metacharacters within a command to match multiple files or directories.

file gobbling

Filenames used by the Windows operating system typically end with a period and three characters that identify the?

file type example, document.txt (a text file) and server.exe

A series of identifiers following a dot ( . ) at the end of a filename, used to denote the type of the file; the filename extension .txt denotes a text file.

filename extensions

The user-friendly identifier given to a file.

filenames

The grep command requires two arguments at minimum, the first argument specifies which text to search for, and the remaining arguments specify the _________?

files to search

A common text editor used within GUI environments.

gedit editor

A Linux command that searches files for patterns of characters using regular expression metacharacters. The command name is short for "global regular expression print."

grep command

The most common way to search for information using regular expressions is the ____ ________.

grep command

A Linux command that displays the first set of lines of a text file; by default, the head command displays the first 10 lines.

head command

A directory on the filesystem set aside for users to store personal files and information.

home directory

A Linux command used to display a text file page-by-page on the terminal screen; users can then use the cursor keys to navigate the file.

less command

A file that contains past system events.

log files

A Linux command used to list the files in a given directory.

ls command

o refer to a directory one step closer to the root of the tree (also known as a parent directory), use ?

two dots ..

A powerful command-line text editor available on most UNIX and Linux systems.

vi editor

The metacharacters used to match certain characters in a file or directory name; they are often used to specify multiple files.

wildcard metacharacter

A metacharacter used to represent a user's home directory.

~ metacharacter

To view a list of files and their type, use the ____ switch to the ls command:

-F

A popular and widespread text editor more conducive to word processing than vi. It was originally developed by Richard Stallman.

Emacs (Editor MACroS) editor

The files that represent the same data as other files.

Linked Files

The directory that is one level closer to the root directory in the directory tree relative to your current directory.

Parent Directory

The pathname of a target directory relative to your current directory in the tree.

Relative pathname

A file used to identify hardware devices such as hard disks and serial ports.

Special device files

A directory that resides within another directory in the directory tree.

Subdirectoy

A feature of the BASH shell that fills in the remaining characters of a unique filename or directory name when the user presses the Tab key.

Tab-completion feature

A file that stores information in a readable text format.

Text Files

Most files on a Linux system that contain configuration information are ______ _______?

Text files

A Linux command used to display a text file page-by-page and line-by-line on the terminal screen.

more command

A temporary connection that sends information from one command or process in memory to another; it can also be represented by a file on the filesystem.

named pipe files

A user-friendly terminal text editor that uses Ctrl key combinations to perform basic functions.

nano editor

A Linux command used to display the contents of a file in octal format.

od command

Filenames that start with a _______ are referred to as hidden files.

period ( . )

A Linux command used to display the current directory in the directory tree.

pwd (print working directory) command

The special metacharacters used to match patterns of text within text files; they are commonly used by text tool commands, including grep.

regular expressions (regexp)

A text file that contains a list of commands or constructs for the shell to execute in order.

shell script

A named pipe connecting processes on two different computers; it can also be represented by a file on the filesystem.

socket file

A Linux command used to search for and display text characters in a binary file.

string command

A Linux command that displays a file on the screen, beginning with the last line of the file and ending with the first line of the file.

tac command

A Linux command used to display lines of text at the end of a file; by default, the tail command displays the last 10 lines of the file.

tail command

come in two varieties: editors that can be used on the command line, including vi (vim), nano, and Emacs, and editors that can be used in a GUI environment, including Emacs (graphical version) and gedit.

text editors

The programs that allow for the creation, modification, and searching of text files.

text tools