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Full Discussion: while loops
Top Forums Shell Programming and Scripting while loops Post 302070063 by nymus7 on Friday 31st of March 2006 04:42:52 AM
Old 03-31-2006
while loops

Hi

I've a file like so:

Quote:
Media1:[0]: Media ID=1232142
Media1:[1]: Type=DFRG
Media1:[2]: Date=12/03/2006
...
Media2:[0]: Media ID=1234543
Media2:[1]: Type=DFRG
Media2:[2]: Date=13/03/2006
...
Now, I want to read my file and take ex. the Media ID and the Type for each groups of Media (Media1,Media2,...,Media(n):
Code:
cat /tmp/file|\
while read FILE
do
  while $(FILE|cut -d: -f1)=Media$i
  do
    #here will be some test, ex:
    #if Media ID < 23
    #then...
  done
  let i=i+1
done

The second while loops doesn't run and I don't know how to do that.
Should I use sed, awk ? I don't must to use Perl?
And my second question is how to do a good shell script, how to know for which case which things (sed,awk,etc...) is better to use.
Yeah, it's a big questions but I really want to go further....
Best regards
 

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GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)					 1					 GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)

gupnp_service_proxy_add_notify - Sets up callback for variable change notification

SYNOPSIS
bool gupnp_service_proxy_add_notify (resource $proxy, string $value, int $type, mixed $callback, [mixed $arg]) DESCRIPTION
Sets up callback to be called whenever a change notification for variable is recieved. PARAMETERS
o $proxy - A service proxy identifier. o $value - The variable to add notification for. o $type - The type of the variable. Type can be one of the following values: o GUPNP_TYPE_BOOLEAN - Type of the variable is boolean. o GUPNP_TYPE_INT - Type of the variable is integer. o GUPNP_TYPE_LONG - Type of the variable is long. o GUPNP_TYPE_DOUBLE - Type of the variable is double. o GUPNP_TYPE_FLOAT - Type of the variable is float. o GUPNP_TYPE_STRING - Type of the variable is string. o $callback - The callback to call when variable changes. Typically, callback function takes on three parameters. The $variable parameter being the first, $value parameter being the second, and the $arg is third. o $arg - User data for $callback. RETURN VALUES
Returns TRUE on success or FALSE on failure. SEE ALSO
gupnp_service_proxy_remove_notify(3). PHP Documentation Group GUPNP_SERVICE_PROXY_ADD_NOTIFY(3)
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