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What (who) is Gecos field - definition
Gecos field
GENERAL INFORMATION FIELD IN UNIX PASSWORD FILES
The gecos field, or GECOS field is a field in each record in the /etc/passwd file on Unix and similar operating systems. On UNIX, it is the 5th of 7 fields in a record.
Field (agriculture)
![A field of [[rapeseed]]s in [[Kärkölä]], Finland (2010)](https://commons.wikimedia.org/wiki/Special:FilePath/Field in Kärkölä.jpg?width=200 "A field of [[rapeseed]]s in [[Kärkölä]], Finland (2010)")
![Spring fields with trees, [[Majorca]], Spain, 2004](https://commons.wikimedia.org/wiki/Special:FilePath/Spring fields Mallorca.jpg?width=200 "Spring fields with trees, [[Majorca]], Spain, 2004")
![A [[combine harvester]] on the field, [[Pornainen]], Finland, 2016](https://commons.wikimedia.org/wiki/Special:FilePath/2016 Pornainen 27.jpg?width=200 "A [[combine harvester]] on the field, [[Pornainen]], Finland, 2016")
![Sown fields in an [[open field system]] of farming](https://commons.wikimedia.org/wiki/Special:FilePath/Moforlogiaagrária.jpg?width=200 "Sown fields in an [[open field system]] of farming")
![[[Paddy field]]](https://commons.wikimedia.org/wiki/Special:FilePath/Paddy field of near Gingee Fort.jpg?width=200 "[[Paddy field]]")
AREA OF LAND USED FOR AGRICULTURAL PURPOSES
Agricultural field; Cultivated field; Arable field; Paddock (field); Farm field; Field (farming)
In agriculture, a field is an area of land, enclosed or otherwise, used for agricultural purposes such as cultivating crops or as a paddock or other enclosure for livestock. A field may also be an area left to lie fallow or as arable land.
Field (physics)
![In [[classical gravitation]], mass is the source of an attractive [[gravitational field]] '''g'''.](https://commons.wikimedia.org/wiki/Special:FilePath/Newtonian gravity field (physics).svg?width=200 "In [[classical gravitation]], mass is the source of an attractive [[gravitational field]] '''g'''.")
![Fields due to [[color charge]]s, like in [[quark]]s ('''G''' is the [[gluon field strength tensor]]). These are "colorless" combinations. '''Top:''' Color charge has "ternary neutral states" as well as binary neutrality (analogous to [[electric charge]]). '''Bottom:''' The quark/antiquark combinations.<ref name="Mc Graw Hill"/><ref name="M. Mansfield, C. O’Sullivan 2011"/>](https://commons.wikimedia.org/wiki/Special:FilePath/Qcd fields field (physics).svg?width=200 "Fields due to [[color charge]]s, like in [[quark]]s ('''G''' is the [[gluon field strength tensor]]). These are \"colorless\" combinations. '''Top:''' Color charge has \"ternary neutral states\" as well as binary neutrality (analogous to [[electric charge]]). '''Bottom:''' The quark/antiquark combinations.<ref name=\"Mc Graw Hill\"/><ref name=\"M. Mansfield, C. O’Sullivan 2011\"/>")
.svg?width=200 "isbn=0-691-03323-4}}</ref>")
COMMON PHYSICS TERM FOR A PHYSICAL QUANTITY, REPRESENTED BY A NUMBER OR TENSOR, THAT HAS A VALUE FOR EACH POINT IN SPACE-TIME
Field theory (physics); Internal group; Physical field; Classical field; Field physics; Relativistic field theory; Spatial field
In physics, a field is a physical quantity, represented by a scalar, vector, or tensor, that has a value for each point in space and time. For example, on a weather map, the surface temperature is described by assigning a number to each point on the map; the temperature can be considered at a certain point in time or over some interval of time, to study the dynamics of temperature change.
