Extensions in the Bell Laboratories awk

Brian Kernighan, one of the original designers of Unix awk, has made his version available via anonymous ftp (see section Other Freely Available awk Implementations). This section describes extensions in his version of awk that are not in POSIX awk.

• The `-mf NNN' and `-mr NNN' command line options to set the maximum number of fields, and the maximum record size, respectively (see section Command Line Options).
• The fflush built-in function for flushing buffered output (see section Built-in Functions for Input/Output).

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