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Top Forums Shell Programming and Scripting Multi line extraction based on condition Post 302910644 by MadeInGermany on Saturday 26th of July 2014 11:17:37 AM
Old 07-26-2014
You need another condition plus another variable.
This one uses a string to store the line (simpler than an array).
Code:
awk '
$1~/\*\*\*/ {if (c>0) print buf; c=0; buf=$0; next}
{buf=buf RS $0}
$1~/[0-9]+\./ {c++}
END {if (c>0) print buf}
' file

Because it prints only at the *** lines, and your example does not end with it, you need another print at the end, otherwise your last section is never printed.

Last edited by MadeInGermany; 07-27-2014 at 01:05 PM.. Reason: buf="" replaced by buf=$0; next
 

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NE_BUFFER_APPEND(3)						neon API reference					       NE_BUFFER_APPEND(3)

NAME
ne_buffer_append, ne_buffer_zappend, ne_buffer_concat - append data to a string buffer SYNOPSIS
#include <ne_string.h> void ne_buffer_append(ne_buffer *buf, const char *string, size_t len); void ne_buffer_zappend(ne_buffer *buf, const char *string); void ne_buffer_concat(ne_buffer *buf, const char *str, ...); DESCRIPTION
The ne_buffer_append and ne_buffer_zappend functions append a string to the end of a buffer; extending the buffer as necessary. The len passed to ne_buffer_append specifies the length of the string to append; there must be no NUL terminator in the first len bytes of the string. ne_buffer_zappend must be passed a NUL-terminated string. The ne_buffer_concat function takes a variable-length argument list following str; each argument must be a char * pointer to a NUL-terminated string. A NULL pointer must be given as the last argument to mark the end of the list. The strings (including str) are appended to the buffer in the order given. None of the strings passed to ne_buffer_concat are modified. EXAMPLES
The following code will output "Hello, world. And goodbye.". ne_buffer *buf = ne_buffer_create(); ne_buffer_zappend(buf, "Hello"); ne_buffer_concat(buf, ", world. ", "And ", "goodbye.", NULL); puts(buf->data); ne_buffer_destroy(buf); SEE ALSO
ne_buffer, ne_buffer_create, ne_buffer_destroy AUTHOR
Joe Orton <neon@lists.manyfish.co.uk> Author. COPYRIGHT
neon 0.30.0 31 July 2013 NE_BUFFER_APPEND(3)
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