org.unix4j.unix.head

Class HeadOptionSets

java.lang.Object

org.unix4j.unix.head.HeadOptionSets

public final class HeadOptionSets
extends Object

Options for the head command with the the following options:

	-c		--chars		The count argument is in units of characters instead of lines. Starts from 1 and includes line ending characters.
	-q		--suppressHeaders		Suppresses printing of headers when multiple files are being examined.

This class serves as entry point to every possible set of head options defined as an enum constant. With this explicit expansion of all possible option combinations, options can be passed to the command in a very compact form, such as:

 head(Head.Options.c, ...);
 head(Head.Options.c.q, ...);
 

Field Summary

Fields

Modifier and Type	Field and Description
HeadOptionSet_cq	c Option "-c": The count argument is in units of characters instead of lines.
HeadOptionSet_cq	chars Option "--chars": The count argument is in units of characters instead of lines.
static HeadOptionSets	INSTANCE The singleton instance.
HeadOptionSet_cq	q Option "-q": Suppresses printing of headers when multiple files are being examined.
HeadOptionSet_cq	suppressHeaders Option "--suppressHeaders": Suppresses printing of headers when multiple files are being examined.

Constructor Summary

Constructors

Constructor and Description
HeadOptionSets()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final HeadOptionSets INSTANCE

The singleton instance.

c

public final HeadOptionSet_cq c

Option "-c": The count argument is in units of characters instead of lines. Starts from 1 and includes line ending characters.

The option "-c" is equivalent to the "--chars" option.

chars

public final HeadOptionSet_cq chars

Option "--chars": The count argument is in units of characters instead of lines. Starts from 1 and includes line ending characters.

The option "--chars" is equivalent to the "-c" option.

q

public final HeadOptionSet_cq q

Option "-q": Suppresses printing of headers when multiple files are being examined.

The option "-q" is equivalent to the "--suppressHeaders" option.

suppressHeaders

public final HeadOptionSet_cq suppressHeaders

Option "--suppressHeaders": Suppresses printing of headers when multiple files are being examined.

The option "--suppressHeaders" is equivalent to the "-q" option.

Constructor Detail

HeadOptionSets

public HeadOptionSets()