Unix |
Unix v7 |
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units(1) |
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units − conversion program
units
Units converts quantities expressed in various standard scales to their equivalents in other scales. It works interactively in this fashion:
You have: inch |
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You want: cm |
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* 2.54000e+00 | |||
/ 3.93701e−01 |
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:
You have: 15 pounds force/in2 |
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You want: atm |
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* 1.02069e+00 | |||
/ 9.79730e−01 |
Units 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 |
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c |
speed of light |
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e |
charge on an electron |
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g |
acceleration of gravity |
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force |
same as g | |||
mole |
Avogadro’s number |
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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’. Currency is denoted ’belgiumfranc’, ’britainpound’, ...
For a complete list of units, ’cat /usr/lib/units’.
/usr/lib/units
Don’t base your financial plans on the currency conversions.
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units(1) | ![]() |