2.7 Flashcards
Preconnected input and output communication channels available to Linux shells and processes.
standard stream
A standard stream that provides data that is typically streamed from the keyboard.
stdin
A standard stream that accepts normal output information to be streamed to the console screen or shell window.
stdout
The process of modifying a shell command to divert the standard input, output, and error streams to locations other than the default.
redirection
Command line operators used when implementing redirection.
> ,»,&>,<
The process of redirecting the output from one command to be the input of another command.
piping
A command line operator that is used when implementing piping.
|
A linux command that redirectsoutput to both stdout and to a file.
tee
A block of text that is redirected as input to a command.
Here documents
A command line operator that is used when implementing here documents.
«
A device file that is associated with the computer’s controlling terminal or the shell’s window.
/dev/tty
A device file that is associate with a null device that is commonly used for disposing unwanted output streams.
/dev/null
A feature of the bash shell that substitutes the output of one shell command as the arguments for another shell command.
Command substitution
A command line operator that is used when implementing command substitution.
$()
A shell command that can be used to split large text streams into 128 KB chunks and to execute shell commands using these chunks as arguments.
xargs
