Shell Programming and Scripting

[handler_syncserver]
class = StreamHandler
args = (sys.stderr,)
level = INFO
formatter = generic

handler_syncserver_errors
class = handlers.RotatingFileHandler
args = ('/tmp/sync-error.log',)
level = ERROR
formatter = generic

[formatter_generic]
format = %(asctime)s,%(msecs)03d %(levelname)-5.5s [%(name)s] %(message)s
datefmt = %Y-%m-%d %H:%M:%S

sed -n /^handler_syncserver_errors/,/^$/p  my_sample.ini

handler_syncserver_errors
class = handlers.RotatingFileHandler
args = ('/tmp/sync-error.log',)
level = ERROR              
formatter = generic

[handler_syncserver]
class = StreamHandler
args = (sys.stderr,)
level = INFO
formatter = generic

[handler_syncserver_errors]
class = handlers.RotatingFileHandler
args = ('/tmp/sync-error.log',)
level = ERROR
formatter = generic

[formatter_generic]
format = %(asctime)s,%(msecs)03d %(levelname)-5.5s [%(name)s] %(message)s
datefmt = %Y-%m-%d %H:%M:%S

sed -n /^\[handler_syncserver_errors\]/,/^$/p  my_sample.ini

class = StreamHandler
args = (sys.stderr,)
level = INFO
formatter = generic

class = handlers.RotatingFileHandler
args = ('/tmp/sync-error.log',)
level = ERROR
formatter = generic

datefmt = %Y-%m-%d %H:%M:%SLINUX-TEST-123:/opt/firefox/favoris_sync/server-full #

13.1 kernel 3.11.6-4-desktop #1 SMP PREEMPT Wed Oct 30 18:04:56 UTC 2013 (e6d4a27) x86_64 x86_64 x86_64 GNU/Linux

sed --version
sed (GNU sed) 4.2.2
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Jay Fenlason, Tom Lord, Ken Pizzini,
and Paolo Bonzini.
GNU sed home page: <http://www.gnu.org/software/sed/>.
General help using GNU software: <http://www.gnu.org/gethelp/>.
E-mail bug reports to: <bug-sed@gnu.org>.
Be sure to include the word ``sed'' somewhere in the ``Subject:'' field.

sed -n '/^\[handler_syncserver_errors\]/,/^$/p'  my_sample.ini

#!/usr/bin/env ruby -w


match = false
str   = ""
File.open("file").each_line do|line|      # open file for processing
  if match and line[/^$/]                 # if match and empty line
    puts str                              # print string
    break
  end
  if line[/handler_syncserver_errors/]    # set match if found your string
    match = true   
  end
  if match                                # gather your lines if match
    str = str + line
  end
end