03-24-2008
To answer that let me explain the difference.
Basically cp will perform a copy from one location to another.
rsync is more advanced. Its more designed for synchronizing directories. It can copy files from one location to another like cp but if the file already exists or has not changed size or modification time (depending on the flags you use) it will not copy that file again to save time. The time it takes to copy a file should not differ between rsync and cp.
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LEARN ABOUT OPENSOLARIS
gvfs-copy
gvfs-copy(1) User Commands gvfs-copy(1)
NAME
gvfs-copy - copy a file from one VFS location to another
SYNOPSIS
gvfs-copy source-URI destination-URI
DESCRIPTION
gvfs-copy copies a file from one URI location to another, using the virtual file system.
OPERANDS
The following operands are supported:
source-URI Specifies the source file location in standard URI format.
destination-URI Specifies the destination file or directory location in standard URI format.
EXAMPLES
Example 1: Copying a File From a Web Server to a Local File
example%
gvfs-copy http://www.sun.com file:///home/user/index.html
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables: NLSPATH.
EXIT STATUS
The exit value 0 is returned regardless of success or failure.
FILES
The following files are used by this application:
/usr/bin/gvfs-copy Executable to copy a file from one VFS location to another
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWgnome-gvfs |
+-----------------------------+-----------------------------+
|Interface stability |Volatile |
+-----------------------------+-----------------------------+
SEE ALSO
gvfs-cat(1), gvfs-info(1), gvfs-less(1), gvfs-ls(1), gvfs-mkdir(1) gvfs-monitor-dir(1), gvfs-monitor-file(1), gvfs-mount(1), gvfs-move(1),
gvfs-rename(1), gvfs-open(1), gvfs-rm(1), gvfs-save(1), gvfs-trash(1), gvfs-tree(1), attributes(5), environ(5)
NOTES
Written by Alvaro Lopez Ortega, Sun Microsystems Inc., 2008.
SunOS 5.11 25 Mar 2008 gvfs-copy(1)