cvtbase
|
The bc command can be used to convert between different bases ( 49.2 ) , but an easier tool to use is cvtbase . cvtbase is designed specifically to convert from one format to another. For example, to convert a decimal IP address into its hexadecimal equivalent: |
---|
%cvtbase d h
140.186.65.25
8c.ba.41.19
The first argument,
d
, means that our input will be in decimal form. The second argument,
h
, means that we want the input converted into hexadecimal. In general, the syntax for calling
cvtbase
is:
cvtbaseinput_base output_base
where input_base and output_base are any of:
d, D
Decimal; i.e., digits
0
through
9
.
x, h
Hexadecimal (using lowercase); i.e.,
0
through
9
and
a
through
f
.
X, H
Hexadecimal (using uppercase); i.e.,
0
through
9
and
A
through
F
.
o, O
Octal; i.e., digits
0
through
7
.
b, B
Binary; i.e., digits
0
and
1
.
Any input characters that aren't in the specified set are sent through unchanged. In the example above, the dots (
.
) in the IP address are retained in the hexadecimal output.
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