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read a specific number of rows from a text file
read_rows( input_file = NULL, read_delimiter = "\n", rows = 100, write_2file = "" )
a character string specifying a valid path to a text file
a character string specifying the row delimiter of the text file
a numeric value specifying the number of rows to read
either "" or a character string specifying a valid output file to write the subset of the input file
if (FALSE) { library(textTinyR) txfl = read_rows(input_file = 'input.txt', rows = 100) }
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