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RS Record Separator
Input record separator. Default value == "\n". The record separator
may have any value: regular expression, string or numeric. When
assigned a value it is converted to a string value. If the length of
the string is a single character, that character is used as the single
character record separator. However, if the length of the resulting
string is longer than one character, it is treated as a regular
expression and converted to internal form at the time of assignment.
The regular expression is then used to scan the input file for a
matching string. The matching string is used as the record separator.
This behavior is consistent with the use of the FS variable.
See Also:
NF
FNR
FILENAME
FS
NR
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