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Full Discussion: Doing multiple tasks in a loop.
Top Forums Shell Programming and Scripting Doing multiple tasks in a loop. Post 302584563 by Trapper on Friday 23rd of December 2011 04:32:51 PM
Old 12-23-2011
Doing multiple tasks in a loop.
I am in the process of updating a folder of hundreds of recipe html files. I've already managed to modify a number of things in each file but I have run into something that's beyond my ability.

I have a text file that I need to insert the contents into the html at a specific point. It creates several link buttons near the top of all the html pages. With the help of several people in this forum, I have a function that does this. I've even modified it for other modifications I have made to the html files and it works well. I've run into a roadblock though. The html recipe files are for a number of food categories and what html I insert for the function I am working on now is dependent upon what category the recipe is in. Unfortunately all these files are in one folder and are not named in a way that they can be sorted into categories. The only way to determine the category is to parse the html of each file.

Here is the function that loops through all the html files and inserts the text file contents in the correct position in each:

Code:
for file in *.htm ; do
while read line
do
grep -q '<div class="recipe"><img' <<<$line && cat cakesandcheesecakes.txt >> "$file".tmp
  echo $line >> "$file".tmp
done < "$file"
done

However, as I have said, the text to insert is dependent on the recipe category. I have text files for each category.

The only way to determine the category of each file is to parse the html. Here are examples from several different categories. The overall format is the same for all 800 files.

Code:
<span class='label'>Category:</span> Cakes and Cheesecakes</p>

<span class='label'>Category:</span> Cookies</p>

<span class='label'>Category:</span> Main Dishes</p>

Once I determine what the category of the current file being processed is I am going to have to call a modified version of the function I have in the first code box that inserts the correct text.

Cakes and Cheesecakes = cakesandcheesecakes.txt
Cookies = cookies.txt
Main Dishes = maindishes.txt
etc., etc.,etc.
(There are 17 categories overall)

I am perplexed regarding how I can loop through each html file, determine the category and insert the appropriate text according to the category.

Any guidance regarding how I need to approach this?
 

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LEARN ABOUT OSF1

rmf

rmf(1)							      General Commands Manual							    rmf(1)

NAME

       rmf - remove folder (only available within the message handling system, mh)

SYNOPSIS

       rmf [+folder] [-help] [-[no]interactive]

OPTIONS

       Prints  a  list of the valid options to this command.  Asks for confirmation before deleting a folder. By default, rmf deletes a folder and
       its messages without asking for confirmation.  If you specify the -interactive option, rmf asks if you are sure before deleting the folder.
       You are advised to use this option, since when rmf deletes a folder its contents are lost irretrievably.

DESCRIPTION

       The  rmf  command  removes all of the messages within the current folder, and then removes the folder itself. If there are any files within
       the folder which are not part of MH, they are not removed, and an error message is displayed.

       You can specify a folder other than the current folder by using the +folder argument. If you do not specify a folder, and rmf  cannot  find
       the current folder,rmf asks you whether you want to delete +inbox instead.

       If the current folder is removed, it makes +inbox current.

       Note that the rmf command irreversibly deletes messages that do not have other links, so use it with caution.

       If  the	folder	being removed is a sub-folder, the parent folder becomes the new current folder, and rmf tells you that this has happened.
       This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list and returning to the current
       folder from which the list was extracted.

       Using  rmf  to  delete a read-only folder deletes the private sequence and current message information from the file, without affecting the
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PROFILE COMPONENTS

       Path: To determine the user's Mail directory

EXAMPLES

       This example shows how rmf asks for confirmation when the -interactive option is used: % rmf -interactive +test Remove folder "test"? y

FILES

       The user profile.

SEE ALSO

       rmm(1)

																	    rmf(1)
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