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Full Discussion: Extract specific content from a file
Top Forums Shell Programming and Scripting Extract specific content from a file Post 302359963 by patrick87 on Wednesday 7th of October 2009 08:49:14 PM
Old 10-07-2009
Hi thegeek,
Thanks for your suggestion. It is worked nice.
Can you roughly explain about the reason that you write the code?!
Code:
sed -n -e '/>sequence_3/q' -e '/>sequence_2/,/>sequence_3/p' t1

For example, if I got long list of contents and I only want to extract specific contents based on the interested header, can I use the sed code that you recommend as well?

Quote:
Originally Posted by thegeek
Code:
sed -n -e '/>sequence_3/q' -e '/>sequence_2/,/>sequence_3/p' t1

Put your input & output in code tags for better visibility.
 

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LEARN ABOUT REDHAT

err_get_lib

ERR_GET_LIB(3)							      OpenSSL							    ERR_GET_LIB(3)

NAME

       ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON - get library, function and reason code

SYNOPSIS

	#include <openssl/err.h>

	int ERR_GET_LIB(unsigned long e);

	int ERR_GET_FUNC(unsigned long e);

	int ERR_GET_REASON(unsigned long e);

DESCRIPTION

       The error code returned by ERR_get_error() consists of a library number, function code and reason code. ERR_GET_LIB(), ERR_GET_FUNC() and
       ERR_GET_REASON() can be used to extract these.

       The library number and function code describe where the error occurred, the reason code is the information about what went wrong.

       Each sub-library of OpenSSL has a unique library number; function and reason codes are unique within each sub-library.  Note that different
       libraries may use the same value to signal different functions and reasons.

       ERR_R_... reason codes such as ERR_R_MALLOC_FAILURE are globally unique. However, when checking for sub-library specific reason codes, be
       sure to also compare the library number.

       ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are macros.

RETURN VALUES

       The library number, function code and reason code respectively.

SEE ALSO

       err(3), ERR_get_error(3)

HISTORY

       ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in all versions of SSLeay and OpenSSL.

0.9.7a								    2000-01-31							    ERR_GET_LIB(3)
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