br.ufscar.saci.util

Class Shell

java.lang.Object

br.ufscar.saci.util.Shell

public class Shell
extends Object

Constructor Summary

Constructors

Constructor and Description
Shell()

Method Summary

Methods

Modifier and Type	Method and Description
static void	cp(String src, String dst) Copy file from source to destination Note: apperently, stream copying is faster than channel copying.
static String	dirname(String filename) Returns the path concateneting dir and fs names
static boolean	exists(String filename) Checks if a string is a valid file or directory.
static String	filename(String... parts) Returns the path concateneting dir and fs names
static String[]	ls(String dirname) Lists files in a folder
static String[]	ls(String dirname, String extension) Lists files in a folder by extension
static boolean	mkdir(String dirname) Creates directories recursively
static void	mv(String src, String dst) Move file from source to destination Note: slow, secure version of mv, which does not present the renameTo method issues.
static void	rm(String filename) Removes a file from the filesystem

Methods inherited from class java.lang.Object

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

Constructor Detail

Shell

public Shell()

Method Detail

cp

public static void cp(String src,
      String dst)

Copy file from source to destination Note: apperently, stream copying is faster than channel copying. See http://www.journaldev.com/861/4-ways-to-copy-file-in-java for details.

Parameters:

src - source filename

dst - destination filename

dirname

public static String dirname(String filename)

Returns the path concateneting dir and fs names

Parameters:

parts -

exists

public static boolean exists(String filename)

Checks if a string is a valid file or directory.

Parameters:

filename -

Returns:

true if the filename exists in the file system

filename

public static String filename(String... parts)

Returns the path concateneting dir and fs names

Parameters:

parts -

ls

public static String[] ls(String dirname)

Lists files in a folder

Parameters:

dirname - the dir name

Returns:

the array containing filenames

ls

public static String[] ls(String dirname,
          String extension)

Lists files in a folder by extension

Parameters:

dirname - the dir name

extension - the pattern

Returns:

the array containing filenames

mkdir

public static boolean mkdir(String dirname)

Creates directories recursively

Parameters:

dirname - the dir name

Returns:

true if and only if the directory was created

mv

public static void mv(String src,
      String dst)

Move file from source to destination Note: slow, secure version of mv, which does not present the renameTo method issues.

Parameters:

src - source filename

dst - destination filename

rm

public static void rm(String filename)

Removes a file from the filesystem

Parameters:

filename - the filename