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Full Discussion: Repeat function in shell script
Top Forums Shell Programming and Scripting Repeat function in shell script Post 302373832 by stinkefisch on Sunday 22nd of November 2009 11:20:03 AM
Old 11-22-2009
Repeat function in shell script
Hi all,

I want to use the wget command to download a file from a webpage and if just in case the file is empty the script should repeat the wget command.

something like this

wget -q -O - http://www.someurl.something > /tmp/file
if [[ -s /tmp/file ]] ; then
echo "$FILE has data." (Continue rest of the script)
else
echo "$FILE is empty." (Repeat the wget command until file contains data then continue rest of the script)
fi ;

Thanks for any help.
 

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LEARN ABOUT SUSE

cddb-tool

CDDB-TOOL(1)						      General Commands Manual						      CDDB-TOOL(1)

NAME

       cddb-tool - Get CDDB information

SYNOPSIS

       cddb-tool parse file [-i|-d|-a|-t] [num|-c|-p]

       cddb-tool template disc-id tracks

       cddb-tool send [file] address

       cddb-tool query server user host disc-id tracks

       cddb-tool read server user host disc-id genre

       cddb-tool help

DESCRIPTION

       cddb-tool is a backend tool for abcde. It is passed information from cd-discid and uses it look up the CD title, artist, and track informa-
       tion on the cddb database (http://freedb.freedb.org) on the internet.

COMMANDS

       parse [file] option

       Get data out of a cddb file (use "-" for stdin).  Options (use one and only one):

	      id     prints disc id

	      album  prints album title

	      track num
		     prints title of track num

	      artist prints artist

	      category
		     prints category

	      cddbgenre
		     synonym for category

	      all    parse file and dumps to stdout in a form sourceable by the shell

       send [file] address

       Mails file file (or stdin of no file specified) to specified address, using correct format.  Category should be one  of	blues,	classical,
       country, data, folk, jazz, newage, reggae, rock, soundtrack, misc.

       template [disc-id] [tracks]

       Generates a template (empty) cddb file to stdout.  The command line should be essentially the output of cd-discid.

       query [server] [user] [host] [disc-id] [tracks]

       Looks  up  disc on server (should be of form "http://host/cddb/cddb.cgi") remainder of command line is in the same form as that returned by
       the cd-discid program. Uses wget, so if you need to use a proxy then just configure wget to do so. user and host will be used for identify-
       ing ourselves to the CDDB server. Outputs response code and entries with matching CDDB entries, if successful, from the CDDB server.

       read [server] [user] [host] [disc-id] [genre]

       Dumps  CDDB  entry to stdout. File will contain an extra #CATEGORY= line, which leaves it a valid CDDB file but which will be recognized by
       parse and send commands. Uses wget, so if you need to use a proxy then just configure wget to do so. user and host will be used for identi-
       fying ourselves to the CDDB server.

       help

       Prints usage information.

AUTHOR

       Nathaniel Smith <njs@uclink4.berkeley.edu>, maintained as part of abcde by Robert Woodcock <rcw@debian.org>. Manual page compiled from help
       information by Robert Woodcock.

																      CDDB-TOOL(1)
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