Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

showmount

showmount [options] [host]

NFS/NIS command. Show information about an NFS server. This

information is maintained by the mountd server on host. The

default value for host is the value returned by hostname. With no

options, show the clients that have mounted directories from the

host. showmount is usually found in /usr/sbin, which is not in the

default search path.

Options

-a, --all

Print all remote mounts in the format hostname:directory,

where hostname is the name of the client and directory is the

root of the filesystem that has been mounted.

-d, --directories

List directories that have been remotely mounted by clients.

-e, --exports

Print the list of exported filesystems.

-h, --help

Provide a short help summary.

--no-headers

Do not print headers.

-v, --version

Report the current version of the program.

shred

shred [options] files

Overwrite a file to make the contents unrecoverable, and delete the

file afterward if requested.

Options

- Shred standard output.

-f, --force

Force permissions to allow writing to files.

--help

Print help message and exit.

-nnum, --iterations=num

Overwrite files num times (default is 25).

-snum, --size=num

Shred num bytes. num can be expressed with suffixes (e.g., K,

M, or G).

-u, --remove

Remove file after overwriting. shred does not remove ...