GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v6 |
|
 |
units(6) |
 |
units conversion program converts quantities expressed
in various standard scales to their equivalents in other
scales. It works interactively in this fashion: inch
cm
A quantity is specified as a multiplicative combination of
units optionally preceded by a numeric multiplier. Powers
are indicated by suffixed positive integers, division by the
usual sign: 15 pounds force/in2
atm
only does multiplicative scale changes. Thus it can convert
Kelvin to Rankine, but not Centigrade to Fahrenheit. Most
familiar units, abbreviations, and metric prefixes are
recognized, together with a generous leavening of exotica
and a few constants of nature including:
|
pi |
ratio of circumference to diameter |
|||
|
c |
speed of light |
|||
|
e |
charge on an electron |
|||
|
g |
acceleration of gravity |
|||
|
force |
same as g |
|||
|
mole |
Avogadro’s number |
|||
|
water |
pressure head per unit height of water |
|||
|
au |
astronomical unit |
‘Pound’ is a unit of mass. Compound names are run together, e.g. ‘lightyear’. British units that differ from their US counterparts are prefixed thus: ‘brgallon’. For a complete list of units, ‘cat /usr/lib/units’. /usr/lib/units
|
units(6) | |