AT&T UNIX™PC Unix System V Users Manual - tenox

CPIO ( 1) CPIO ( 1)
cpio -oc 0128 > /dev/rfp021
will begin the output at block number 128.
t Print a table of contents of the input. No files are
created.
T Provides a specific buffer size for the cpio operation. The
size of the buffer, in kilobytes ( lKB = 1024B ), follows
the T. For example,
cpio -ict T64 < /devjrfp021
uses a 64KB buffer while it reads the filenames from the
cpio set. Note that if no buffer size is specified, 64KB
buffers are used.
u Copy unconditionally (normally, an older file will not
replace a newer file with the same name).
v Verbose : causes a list of file names to be printed. When
used with the t option, the table of contents looks like the
output of an Is -1 command (see ls (1)).
x Halt the cpio operation as soon as one filename in the pattern
list is restored (otherwise the entire cpio set is read).
This option is used only with the -i option.
m
Whenever possible, link files rather than copying them.
Usable only with the -p option.
Retain previous file modification time. This option is
ineffective on directories that are being copied.
r Copy in all files except those in patterns.
s Swap bytes. Use only with the -i option.
S Swap halfwords. Use only with the -i option.
b Swap both bytes and halfwords. Use only with the -i
option.
6 Process an old (i.e., UNIX Sixth Edition format) file. Only
useful with -i (copy in).
EXAMPLES
The first example below copies the contents of a directory into an
archive; the second duplicates a directory hierarchy:
Is I cpio -o > /dev /rfp021
cd olddir
find • -depth -print I cpio -pdl newdir
The trivial case "find • -depth -print I
> /dev /rfp021" can be handled more efficiently by:
find . -cpio jdev /rfp021
SEE ALSO
ar(1), find(1), cpio(4).
cpio -oB
BUGS
Path names are restricted to 128 characters. If there are too
many unique linked files, the program runs out of memory to keep
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