1NCO(1)                      General Commands Manual                     NCO(1)
2
3
4

NAME

6       NCO - netCDF Operators
7

SYNTAX

9       operator [ options] input-files output-file
10

DESCRIPTION

12       The  netCDF  Operators,  or NCO are a suite of programs known as opera‐
13       tors.  Each operator is a standalone, command line program which is ex‐
14       ecuted  at the UNIX shell-level like, e.g., ls or mkdir.  The operators
15       take netCDF  (<http://www.unidata.ucar.edu/packages/netcdf>)  files  as
16       input, then perform a set of operations (e.g., deriving new data, aver‐
17       aging, hyperslabbing, or metadata manipulation) and  produce  a  netCDF
18       file  as output.  The operators are primarily designed to aid manipula‐
19       tion and analysis of gridded scientific data.  The single command style
20       of  NCO  allows users to manipulate and analyze files interactively and
21       with simple scripts, avoiding the overhead (and some of the power) of a
22       higher  level programming environment.  The NCO Users Guide illustrates
23       their use with examples from the field of climate modeling  and  analy‐
24       sis.
25
26       The available operators are:
27
28              ncap2, netCDF Arithmetic Processor
29              ncatted, netCDF Attribute Editor
30              ncbo, netCDF Binary Operator (includes ncadd, ncsubtract, ncmul‐
31              tiply, ncdivide)
32              nces, netCDF Ensemble Averager
33              ncecat, netCDF Ensemble Concatenator
34              ncflint, netCDF File Interpolator
35              ncks, netCDF Kitchen Sink
36              ncpdq, netCDF Permute Dimensions Quickly, Pack Data Quietly
37              ncra, netCDF Record Averager
38              ncrcat, netCDF Record Concatenator
39              ncrename, netCDF Renamer
40              ncwa, netCDF Weighted Averager.
41       (Note that the "averagers" are misnamed because they perform many  non-
42       linear operations as well, e.g., total, minimum, maximum, RMS).
43
44       The  operators  are  as general as netCDF itself: there are no restric‐
45       tions on the contents of the netCDF file(s) used as input.   NCO's  in‐
46       ternal  routines are completely dynamic and impose no limit on the num‐
47       ber or sizes of dimensions, variables, and files.  NCO is  designed  to
48       be  used both interactively and with large batch jobs.  The default op‐
49       erator behavior is often sufficient for everyday needs, and  there  are
50       numerous command line (i.e., run-time) options, for special cases.  NCO
51       works well on all modern operating systems.
52
53

AUTHOR

55       NCO manual pages written by Charlie Zender and originally formatted  by
56       Brian Mays.
57
58

REPORTING BUGS

60       Report bugs to <http://sf.net/bugs/?group_id=3331>.
61
62
64       Copyright © 1995-present Charlie Zender
65       This is free software; see the source for copying conditions.  There is
66       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
67       PURPOSE.
68
69

SEE ALSO

71       The full documentation for NCO is maintained as a Texinfo manual called
72       the NCO Users Guide.  Because NCO is mathematical in nature, the  docu‐
73       mentation  includes  TeX-intensive  portions not viewable on character-
74       based displays.  Hence the only complete and authoritative versions  of
75       the NCO Users Guide are the PDF (recommended), DVI, and Postscript ver‐
76       sions at <http://nco.sf.net/nco.pdf>, <http://nco.sf.net/nco.dvi>,  and
77       <http://nco.sf.net/nco.ps>,  respectively.   HTML  and XML versions are
78       available         at          <http://nco.sf.net/nco.html>          and
79       <http://nco.sf.net/nco.xml>, respectively.
80
81       If  the  info and NCO programs are properly installed at your site, the
82       command
83
84              info nco
85
86       should give you access to the complete manual, except for  the  TeX-in‐
87       tensive portions.
88
89       ncap2(1),   ncatted(1),   ncbo(1),   ncclimo(1),   nces(1),  ncecat(1),
90       ncflint(1), ncz2psx(1), ncks(1), nco(1), ncpdq(1), ncra(1),  ncrcat(1),
91       ncremap(1), ncrename(1), ncwa(1)
92
93

HOMEPAGE

95       The NCO homepage at <http://nco.sf.net> contains more information.
96
97
98
99                                                                        NCO(1)
Impressum