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.

Byte count

The number of bytes to be interpreted by the conversion

string. It should be preceded by a slash character to

distinguish it from the iteration count.

Format characters

The actual format characters should be surrounded by

quotation marks and are interpreted as fprintf (see printf)

formatting strings, although the *, h, l, n, p, and q options

will not work as expected. Format string usage is

discussed at greater length in the hexdump manpage.

-f filename

Choose a file that contains several format strings. The strings

should be separated by newlines; the # character marks a line

as a comment.

-n length

Limit the number of bytes of input to be interpreted.

-o Two-byte octal display, meaning a hexadecimal offset

followed by eight five-column data entries of two bytes each,

in octal format.

-s offset

Skip to specified offset. The offset number is assumed to be

decimal unless it starts with 0x or 0X (hexadecimal), or O

(octal). Numbers may also be designated in megabytes, kilo-

bytes, or half-kilobytes with the addition of m, k,orb at the

end of the number.

-v Display all input data, even if it is the same as the previous

line. Normally, a duplicate line is replaced by an asterisk (*).

-x Display data in a two-byte hexadecimal format. The offset is,

as usual,