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Full Discussion: Wget download file ( do not overwrite )
Top Forums Shell Programming and Scripting Wget download file ( do not overwrite ) Post 302879810 by bakunin on Sunday 15th of December 2013 02:04:41 PM
Old 12-15-2013
My suggestion is to load up a "version file" together with the software bundle. You script would then download the version file first (the file would contain only the version as text), compare that to the version installed and then either do nothing or go through the update routine.

Something like:

Code:
#!/bin/sh
typeset -i installed="$(cat /etc/installed-version)"   # get version somehow
typeset -i update=0
wget http://xxx.myftp.org:2322/add/current-version
update=$(cat current-version)

if [ $update -gt $installed ] ; then
     wget http://xxx.myftp.org:2322/add/current-version
     tar -zxvf test.tar.gz -C /
     mv current-version /etc/installed-version       # update installed version
     rm test.tar.gz
fi

Probably not the most elegant solution, but you sure can start with that and add some elaboration, so i hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
stefki
 

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LEARN ABOUT DEBIAN

bgoffice-dict-download

BGOFFICE-DICT-DOWNLOAD(1)				User Contributed Perl Documentation				 BGOFFICE-DICT-DOWNLOAD(1)

NAME

       bgoffice-dict-download - download dictionaries for bgoffice

SYNOPSIS

	   # list known dictionaries
	   bgoffice-dict-download --list

	   # download a dictionary
	   bgoffice-dict-download --dict bg-en_dual

	   # explicit output file
	   bgoffice-dict-download --dict bg-en_dual --output=/some/where.tar.bz2

DESCRIPTION

       bgoffice-dict-download is a small program to help download bgoffice dictionaries off sourceforge.net. It browses the bgoffice project
       download area and follows the download links.

       The dictionary is downloaded in the current directory, unless the "--output" option is used.

OPTIONS

       --list
	   Prints the list of the known dictionaries.

       --dict dictionary name
	   Specifies the dictionary to be downloaded. See "--list" for the known dictionaries. This option is mandatory, unless "--list" is given.

       --output file
	   Saves the downloaded dictionary in the given file, instead of ./<dict>.tar.bz2

COPYRIGHT AND LICENSE

       Copyright: (C) 2010 Damyan Ivanov dmn@debian.org

       Permission is granted to use this work, with or without modifications, provided that this notice is retained. If we meet some day, and you
       think this stuff is worth it, you can buy me a beer in return.

perl v5.14.2							    2010-12-16						 BGOFFICE-DICT-DOWNLOAD(1)
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