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vl3, vl4, vl5 -> list variable with description

At UQAM, there There is also a set of 'vl' (variable list) commands (one for each model version) which will give you a list of all the variables in an RPN file. The first description is always correct, but rarely contains the unit. For physics fields take the second description with a grain of salt. If it matches the first one, it's unit is correct as well. If it doesn't match, ignore it. However, to all units of accumulators a 'per second' needs to get added, for example:

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editfst (also called editfst2000) is a utility used for editing and copying records from RPN standard files into a new or existing RPN standard file. It can do a straight (complete) copy of the input file or it can copy records selectively as indicated from the standard input or from a file of directives named in the "-i" key. One can select (via desire), exclude (via exclure) or modify (zap) records by their:

• TYPVAR: type of variable; 'A'(analysis),'P'(forecast),'X'
• NOMVAR: 4 caracter variable name
• ETIKET: 12 caracter label recorded from the original model run
• DATE: CMC date timestamp
• IP1: the level of the field (in pressure,eta,meters,other)
• IP2: the hour of the forecast (rounded off if not exact)
• IP3: value of 0 unless otherwise modified

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Notes:

• If you do not add a path to the output file name the file will end up in $TMPDIR!!!
• All fields in a file must have the same "type" of levellevels.  
  You cannot have i.e. sigma, hybrid, arbitrary and pressure levels in the same file!!! Nor can there be, for example, a field on 20 pressure levels and another on only 1 pressure level. If your RPN input file contains fields with different types or numbers of fields levels you can select the fields your want to convert with 'r.diag' and/or 'editfst' - see above.
  
• If converting RPN to NetCDF make sure your RPN file contains all necessary grid descriptors ('^^', '>>', '^>', 'HY','!!')
• All variables you want to convert need to be in the attribute list. 
  You can find an example file on the servers under:   ~winger/Scripts/NetCDF_converter/attribut_netcdf.dat
  Make sure that the For each variable that is to be converted needs to be an entry starting with 'def_attribut' at the end of the file. Higher up in the file you find the documentation - see also below.
  Make sure that the factors are correct!!!  If one or more of your variables are not in this file, just take a copy and add the missing variables.
  

 Notes: 

       - Unit conversion from RPN → netCDF:         unit(RPN) = mult*unit(netCDF)+add 
       - Unit conversion from netCDF → RPN :        unit(netCDF)= (unit(RPN)-add)/mult 
       - 'nom_attribut' and 'valeur_attribut' are only used for conversions to nsfCDF format.
       - Never put a space before the ";"!
       - "[", "]", "=" and ";" are reserved characters. Do not use them otherwise, for example in names or descriptions.