1UDUNITS(1) UNIDATA UTILITIES UDUNITS(1)
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6 udunits - Unidata units utility
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9 udunits [-d] [units-file]
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12 This utility uses the Unidata udunits(3) library to display the transā
13 formation necessary to convert from one unit to another.
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15 units-file contains unit definitions and is used to initialize the
16 udunits(3) library. If not specified, then the default units-file
17 determined by the udunits(3) library is used.
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19 This utility works interactively and has two modes. In one mode, both
20 an input and output unit specification are given, causing the utility
21 to print the conversion between them:
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23 You have: inch
24 You want: cm
25 <cm> = <inch>*2.54
26 <cm> = <inch>/0.393701
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28 You have: (15 lbs force/in)^2
29 You want: atm2
30 <atm2> = <(15 lbs force/in)^2>*0.995719
31 <atm2> = <(15 lbs force/in)^2>/1.0043
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33 You have: celsius
34 You want: fahrenheit
35 <fahrenheit> = <celsius>*1.8 + 32
36 <fahrenheit> = <celsius>/0.555556 + 32
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38 In the other mode, only an input unit specification is given. This
39 causes the utility to print the definition -- in standard units -- of
40 the input unit:
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42 You have: fahrenheit
43 You want:
44 Definition: "0.555556 kelvin @ 255.372"
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46 You have: geopotential meters
47 You want:
48 Definition: "9.80665 meter2 second-2"
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50 See the manual page on the udunits(3) library for a description of the
51 unit-specification grammar.
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54 -d Have the yacc(1)-generated parser print diagnostic messages.
55 The default is no messages. This only works if the parser was
56 compiled with the C preprocessor macro YYDEBUG defined.
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59 This package prints (hopefully) self-explanatory error-messages.
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62 udunits(3).
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66Printed: 119.6.22 $Date: 1995/08/04 20:54:10 $ UDUNITS(1)