Dell Acceleration Appliances for Databases Guía de usuario descargar pdf (Pagina 135)

-context or -C Print NUM lines of output context. This places a line containing ’--’

between contiguous groups of matches.

--only-matching or –o Print only the part of the line that matches the expression.

--group or –g <string> Print the contents of the regex group. Group 0 is the entire pattern.

--group-separator or –sep <string>

When printing multiple groups, use this item to separate them.

(See

help –-all for details on all other options.)

Arguments

pattern Regular expression, following the syntax given at

http://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html

shell:head

Displays the first lines of a file.

Syntax

shell:head [options] paths or URLs

Options

-n <integer> Number of lines to display, starting at 1

Arguments

paths or URLs List of file paths or URLs to display, separated by spaces

shell:if

Conditionally executes commands. See Details below for more information.

Syntax

shell:if [options] condition ifTrue or ifFalse

Options

--not Negate the logic of the condition.

Arguments

condition Condition; a function or value

ifTrue Function to execute if the condition is true

ifFalse Function to execute if the condition is false

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