Linux in a Nutshell, Fifth Edition

cpp | 97

Linux

Commands

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-O file

Archive the output to file, which may be a file on another

machine (see -F).

--only-verify-crc

For a CRC-format archive, verify the CRC of each file; don’t

actually copy the files in.

--quiet

Don’t print the number of blocks copied.

-r Rename files interactively.

-R [user][:group], --owner [user][:group]

Reassign file ownership and group information to the user’s

login ID (privileged users only).

-s, --swap-bytes

Swap bytes of each two-byte half-word.

-S, --swap-half-words

Swap half-words of each four-byte word.

--sparse

For copy-out and copy-pass, write files that have large blocks

of zeros as sparse files.

-t, --list

Print a table of contents of the input (create no files). When

used with the -v option, resembles output of ls -l.

-u, --unconditional

Unconditional copy; old files can overwrite new ones.

-v, --verbose

Print a list of filenames processed.

-V, --dot

Print a dot for each file read or written (this shows cpio at

work without cluttering the screen).

--version

Print version number and then exit.

Examples

Generate a list of files whose names end in .old using find; use the

list as input to cpio:

find . -name "*.old" | cpio -ocBv > /dev/rst8

Restore from a tape drive all files whose names contain save (subdi-

rectories are created if needed):

cpio -icdv "*save*" < /dev/rst8 ...