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Top Forums Programming Help to filter read through reference file by using c language Post 302541515 by cpp_beginner on Monday 25th of July 2011 02:47:59 AM
Old 07-25-2011
Help to filter read through reference file by using c language

Input_file
Code:
#tmp_2
werweraewghe
@tmp_2
123sdfs57a
#tmp_1
aewrgheheghe
@tmp_1
457awrerfa87
#tmp_4
trtyrghe
@tmp_4
8898rtyr2

reference_file
Code:
#tmp_4
#tmp_1

output_file
Code:
#tmp_4
trtyrghe
@tmp_4
8898rtyr2
#tmp_1
aewrgheheghe
@tmp_1
457awrerfa87

Logic thinking to solve the problem:
Code:
1. Based on the record of reference_file, print out those content that appear in Input_file into another output_file

Thanks for any advice.
 

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base64(1)						    BSD General Commands Manual 						 base64(1)

NAME
base64 -- Encode and decode using Base64 representation SYNOPSIS
base64 [-d | -h | -v | -D] [-b count] [-i input_file] [-o output_file] DESCRIPTION
base64 encodes and decodes Base64 data, as specified in RFC 4648. With no options, base64 reads raw data from stdin and writes encoded data as a continuous block to stdout. OPTIONS
The following options are available: -b count --break=count Insert line breaks every count characters. Default is 0, which generates an unbroken stream. -d --debug Print verbose log messages during processing. -D --decode Decode incoming Base64 stream into binary data. -h --help Print usage summary and exit. -i input_file --input=input_file Read input from input_file. Default is stdin; passing - also represents stdin. -o output_file --output=output_file Write output to output_file. Default is stdout; passing - also represents stdout. -v --version Print build version and exit. SEE ALSO
openssl(1), wikipedia page <http://en.wikipedia.org/wiki/Base64>, RFC 4648 <http://tools.ietf.org/html/rfc4648> Mac OS X 10.7 February 8, 2011 Mac OS X 10.7
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