(gawk.info.gz) Common Extensions

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 A.6 Common Extensions Summary
 =============================
 
 This minor node summarizes the common extensions supported by `gawk',
 Brian Kernighan's `awk', and `mawk', the three most widely-used freely
 available versions of `awk' ( Other Versions).
 
 Feature                      BWK Awk   Mawk   GNU Awk
 -------------------------------------------------------- 
 `\x' Escape sequence         X         X      X
 `RS' as regexp                         X      X
 `FS' as null string          X         X      X
 `/dev/stdin' special file    X         X      X
 `/dev/stdout' special file   X         X      X
 `/dev/stderr' special file   X         X      X
 `**' and `**=' operators     X                X
 `func' keyword               X                X
 `nextfile' statement         X         X      X
 `delete' without subscript   X         X      X
 `length()' of an array       X                X
 `BINMODE' variable                     X      X
 
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