# units(1) [plan9 man page]

UNITS(1) General Commands Manual UNITS(1)NAME

units - conversion programSYNOPSIS

units [] [ file ]-vDESCRIPTION

Units converts quantities expressed in various standard scales to their equivalents in other scales. It works interactively in this fash- ion: you have: inch you want: cm * 2.54 / 0.393701 A quantity is specified as a multiplicative combination of units and floating point numbers. Operators have the following precedence: + - add and subtract * / x -:- multiply and divide catenation multiply 2 3 ^ exponentiation | divide ( ... ) grouping Most familiar units, abbreviations, and metric prefixes are recognized, together with a generous leavening of exotica and a few constants of nature including: pi,n 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 The is a unit of mass. Compound names are run together, e.g. British units that differ from their US counterparts are prefixed thus: Cur- rency is denoted etc. The complete list of units can be found in /lib/units. A file argument to units specifies a file to be used instead of /lib/units. Theflag causes units to print its entire database.-vEXAMPLE

you have: 15 pounds force/in2 you want: atm * 1.02069 / .97973FILES

/lib/unitsSOURCE

/sys/src/cmd/units.yBUGS

Since units does only multiplicative scale changes, it can convert Kelvin to Rankine but not Centigrade to Fahrenheit. Currency conversions are only as accurate as the last time someone updated /lib/units. UNITS(1)

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units(1) User Commands units(1)NAME

units - converts quantities expressed in standard scales to other scalesSYNOPSIS

unitsDESCRIPTION

units converts quantities expressed in various standard scales to their equivalents in other scales. It works interactively in this fash- ion: You have:~~inch You want:~~cm * 2.540000e+00 / 3.937008e-01 A quantity is specified as a multiplicative combination of units optionally preceded by a numeric multiplier. Powers are indicated by suf- fixed positive integers, division by the usual sign: You have:~~15 lbs force/in2 You want:~~atm * 1.020689e+00 / 9.797299e-01 units only does multiplicative scale changes; thus it can convert Kelvin to Rankine, but not Celsius 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 not recognized as a unit of mass; lb is. Compound names are run together, (for example, lightyear). British units that differ from their U.S. counterparts are prefixed thus: brgallon. For a complete list of units, type: cat /usr/share/lib/unittabFILES

/usr/share/lib/unittabATTRIBUTES

See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWesu | +-----------------------------+-----------------------------+SEE ALSO

attributes(5)SunOS 5.1114 Sep 1992 units(1)