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Top Forums Shell Programming and Scripting awk get matched line's previous line Post 302445429 by jimmy_y on Monday 16th of August 2010 02:42:42 AM
Old 08-16-2010
awk get matched line's previous line

hi everyone,

Code:
a
b in
c
d
e
f in
g

output is:
Code:
a
e

so awk search for "in", then print out the matched line's previuos line.
Please advice.
Thanks
 

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ERR_print_errors(3)						      OpenSSL						       ERR_print_errors(3)

NAME
ERR_print_errors, ERR_print_errors_fp - print error messages SYNOPSIS
#include <openssl/err.h> void ERR_print_errors(BIO *bp); void ERR_print_errors_fp(FILE *fp); DESCRIPTION
ERR_print_errors() is a convenience function that prints the error strings for all errors that OpenSSL has recorded to bp, thus emptying the error queue. ERR_print_errors_fp() is the same, except that the output goes to a FILE. The error strings will have the following format: [pid]:error:[error code]:[library name]:[function name]:[reason string]:[file name]:[line]:[optional text message] error code is an 8 digit hexadecimal number. library name, function name and reason string are ASCII text, as is optional text message if one was set for the respective error code. If there is no text string registered for the given error code, the error string will contain the numeric code. RETURN VALUES
ERR_print_errors() and ERR_print_errors_fp() return no values. SEE ALSO
err(3), ERR_error_string(3), ERR_get_error(3), ERR_load_crypto_strings(3), SSL_load_error_strings(3) HISTORY
ERR_print_errors() and ERR_print_errors_fp() are available in all versions of SSLeay and OpenSSL. 0.9.7a 2000-01-31 ERR_print_errors(3)
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