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Top Forums Shell Programming and Scripting sed - How to insert line before the first blank line following a token Post 302881284 by jcdole on Friday 27th of December 2013 02:01:47 PM
Old 12-27-2013
sed - How to insert line before the first blank line following a token

Hello.

I have a config file (/etc/my_config_file) which may content :

Code:
#
# port for HTTP (descriptions, SOAP, media transfer) traffic
port=8200

# network interfaces to serve, comma delimited
network_interface=eth0

# set this to the directory you want scanned.
# * if have multiple directories, you can have multiple media_dir= lines
# * if you want to restrict a media_dir to a specific content type, you
#   can prepend the type, followed by a comma, to the directory:
#   + "A" for audio  (eg. media_dir=A,/home/jmaggard/Music)
#   + "V" for video  (eg. media_dir=V,/home/jmaggard/Videos)
#   + "P" for images (eg. media_dir=P,/home/jmaggard/Pictures)
#media_dir=V,/srv/media/film
#media_dir=A,/srv/media/musique
#media_dir=P,/srv/media/photo
#media_dir = /home/some_user/my_personal_old_data

# set this if you want to customize the name that shows up on your clients
friendly_name=SJL DLNA Server MY_SERVER OPENSUSE 13.1

I have a variable which contains the token to search :
Code:
MY_TOKEN="media_dir"

I have a variable which contains the file to search in
Code:
MY_FILE="/etc/my_config_file"

I have a variable which contains the value for the searched token
Code:
MY_PARAMETER_VALUE="media_dir = /srv/media/my_personal_new_data"

I want to insert $MY_PARAMETER_VALUE, before the blank line and after the line : #media_dir = /home/some_user/my_personal_old_data
and the search token is $MY_TOKEN using some function like :

Code:
my_insert  $MY_TOKEN  $MY_PARAMETER_VALUE $MY_FILE

Any help is welcome
 

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MINIDLNA.CONF(5)						File Formats Manual						  MINIDLNA.CONF(5)

NAME
minidlna.conf -- MiniDLNA server configuration file SYNOPSIS
/etc/minidlna.conf DESCRIPTION
minidlna(1) reads configuration options from the system-wide configuration file /etc/minidlna.conf, or the file specified with -f on the com- mand line. The file contains keyword-argument pairs, one per line. Lines starting with '#' and empty lines are interpreted as comments. The possible keywords and their meanings are as follows: album_art_names List of filenames to check for when searching for album art cache, separated by forward slashes ('/'). db_dir Path to the directory minidlna should use to store its database and album art cache. Uses /var/lib/minidlna by default. enable_tivo Set to 'yes' to enable support for streaming JPEG and mp3 files to a TiVo supporting HMO. Set to 'no' otherwise. friendly_name Customize the name that the minidlna server sends to clients. inotify Set to 'yes' to enable inotify monitoring of the files under media_dir to automatically discover new files. Set to 'no' to disable inotify. listening_ip IPv4 address minidlna should listen on. log_dir Path to the directory where the log file should be stored. Defaults to /var/log. log_level Defines down to which level of importance messages should be logged. Must be one of ``off'', ``fatal'', ``error'', ``warn'', ``info'' or ``debug'', listed here in order of decreasing importance. ``off'' turns off logging messages entirely, ``fatal'' logs the most critical messages only, and so on down to ``debug'' that logs every single messages. media_dir Path to the directory containing the media files the minidlna server should share. Use this option several times if you have more than one directory to share. To restrict a path to one specific media type, you can use the following syntax: the letter 'A', 'V' or 'P', followed by a comma (',') followed by the path. The meaning of the first letter is as follows: o 'A' for audio files; o 'V' for video files; o 'P' for image files. For example, if you want to include only video files located under the /opt/media/videos directory, you would use media_dir=V,/opt/media/videos. After making changes to this option, you need to rebuild the database. If you use an init script to start/stop minidlna, then you should run (as root) service minidlna force-reload. Otherwise, just add -R to your usual minidlna command line (minidlna [...] -R). minissdpdsocket Path to the MiniSSDPd socket, if you want to use minidlna together with MiniSSDPd. Defaults to /run/minissdpd.sock. model_name Set the model name reported to clients. Defaults to ``Windows Media Connect compatible (MiniDLNA)''. model_number Set the model number reported to clients. network_interface Network interface to bind to. notify_interval Set the notify interval, in seconds. The default is 895 seconds. port Port for HTTP traffic. Defaults to port 80. presentation_url Define the presentation URL. root_container Use a different container as the root of the tree exposed to clients. The possible values are: o '.' to use the standard container (this is the default); o 'B' to use the ``Browse Directory'' container; o 'M' to use the ``Music'' container; o 'V' to use the ``Video'' container; o 'P' to use the ``Pictures'' container. If you specify 'B' and the client device is audio only, then ``Music/Folders'' will be used as the root container. serial Set the serial number reported to clients. strict_dlna Set to 'yes' to strictly adhere to DLNA standards. This will allow server-side downscaling of very large JPEG images, which may hurt JPEG serving performance on (at least) Sony DLNA products. Set to 'no' otherwise. FILES
/etc/minidlna.conf System-wide default configuration file. SEE ALSO
minidlna(1) Debian July 21, 2011 Debian
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