DITTO(1) BSD General Commands Manual DITTO(1)
NAME
ditto -- copy directory hierarchies, create and extract archives
SYNOPSIS
ditto [-v] [-V] [-X] [<options>] src ... dst_directory
ditto [-v] [-V] [<options>] src_file dst_file
ditto -c [-z | -j | -k] [-v] [-V] [-X] [<options>] src dst_archive
ditto -x [-z | -j | -k] [-v] [-V] [<options>] src_archive ...
dst_directory
ditto -h | --help
DESCRIPTION
In its first form, ditto copies one or more source files or directories
to a destination directory. If the destination directory does not exist
it will be created before the first source is copied. If the destination
directory already exists then the source directories are merged with the
previous contents of the destination.
In its second form, ditto copies a file to the supplied dst_file path-
name.
The next two forms reflect ditto's ability to create and extract ar-
chives. These archives can be either CPIO format (preferred for unix
content) or PKZip (for Windows compatibility). src_archive (and
dst_archive) can be the single character '-', causing ditto to read
(write) archive data from stdin (or to stdout, respectively).
ditto follows symbolic links provided as arguments but does not follow
any links as it traverses the source or destination hierarchies. ditto
overwrites existing files, symbolic links, and devices in the destination
when these are copied from a source. The resulting files, links, and
devices will have the same mode, access time, modification time, owner,
and group as the source items from which they are copied. Pipes, sock-
ets, and files with names beginning with .nfs or .afpDeleted will be
ignored. ditto does not modify the mode, owner, group, extended
attributes, or ACLs of existing directories in the destination. Files
and symbolic links cannot overwrite directories or vice-versa.
ditto can be used to "thin" Universal Mach-O binaries during a copy.
ditto can also copy files selectively based on the contents of a BOM
("Bill of Materials") file. ditto preserves file hard links (but not
directory hard links) present in the source directories and preserves
setuid and setgid modes when run as the superuser.
ditto will preserve resource forks and HFS meta-data information when
copying unless instructed otherwise using --norsrc . Similarly, ditto
will preserve extended attributes and Access Control Lists (ACLs) unless
--noextattr or --noacl is passed. DITTONORSRC can be set in the environ-
ment as an alias to --norsrc --noextattr --noacl on the command line.
OPTIONS
-h Print full usage.
-v Print a line of output to stderr for each source directory
copied.
It sounds like it does what I'm wanting to do from the description of it's first form (although no mention of an ability to skip bad files). But I can't see/don't understand what the command line would be that I would type to get it to do it!
