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 4.9.10 Summary of `getline' Variants
 ------------------------------------
 
  table-getline-variants summarizes the eight variants of
 `getline', listing which built-in variables are set by each one, and
 whether the variant is standard or a `gawk' extension.
 
 Variant                  Effect                      Standard /
                                                      Extension
 ------------------------------------------------------------------------- 
 `getline'                Sets `$0', `NF', `FNR',     Standard
                          and `NR'                    
 `getline' VAR            Sets VAR, `FNR', and `NR'   Standard
 `getline <' FILE         Sets `$0' and `NF'          Standard
 `getline VAR < FILE'     Sets VAR                    Standard
 COMMAND `| getline'      Sets `$0' and `NF'          Standard
 COMMAND `| getline' VAR  Sets VAR                    Standard
 COMMAND `|& getline'     Sets `$0' and `NF'          Extension
 COMMAND `|& getline'     Sets VAR                    Extension
 VAR                                                  
 
 Table 4.1: getline Variants and What They Set
 

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