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Full Discussion: Odd .sh behavior in script
Top Forums UNIX for Dummies Questions & Answers Odd .sh behavior in script Post 302165967 by otheus on Sunday 10th of February 2008 06:53:32 AM
Old 02-10-2008
Script problem
Yeah, you've called "process_interactive" recursively. When you get the "Are you sure prompt" and you enter "No", it calls process_interactive() again and eventually gets to the HTTP prompt for the first time. When that call returns/finishes, it continues at the prior execution point, which is to continue with the
Code:
while read; do

loop. When it finishes with that, it goes to the HTTP prompt for the second time. You can fix this with a double loop.
Code:
while true; do
   echo -n "Prompt for path: ";
   read path
   while true; do 
      echo -n "Are you sure? Y/N";
      read yesno
      if [ x$yesno == xY ]; then
        break 2;
      elif [ x$yesno == xN ]; then 
        continue 2;
      else
        continue;
      fi
  done
done

To see what I mean about the recursion, throw in a debugging statement at the top of the function call, like this:

Code:
echo >&2 "Entering function process_interactive"

If you are using ksh or bash, you can also turn on debugging. At the top of the script (or somewhere), do:
Code:
set -x

And you will get a line of output for each expression evaluated by the shell during the processing of the script.
 

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LEARN ABOUT PHP

conjure

conjure(1)						      General Commands Manual							conjure(1)

NAME

       conjure - interprets and executes scripts written in the Magick Scripting Language (MSL).

SYNOPSIS

       conjure [options] script.msl

OVERVIEW

       The conjure program is a member of the ImageMagick(1) suite of tools.  Use it to process a Magick Scripting Language (MSL) script. The Mag-
       ick scripting language (MSL) will primarily benefit those that want to accomplish custom image processing tasks but do not wish to program,
       or those that do not have access to a Perl interpreter or a compiler.

       For  more  information  about  the  conjure  command,  point your browser to file:///usr/share/doc/packages/ImageMagick/www/conjure.html or
       http://www.imagemagick.org/script/conjure.php.

DESCRIPTION

       Image Settings:
	 -monitor	      monitor progress
	 -quiet 	      suppress all warning messages
	 -regard-warnings     pay attention to warning messages
	 -seed value	      seed a new sequence of pseudo-random numbers
	 -verbose	      print detailed information about the image

       Miscellaneous Options:
	 -debug events	      display copious debugging information
	 -help		      print program options
	 -log format	      format of debugging information
	 -list type	      print a list of supported option arguments
	 -version	      print version information

       In additiion, define any key value pairs required by your script.  For example,

	   conjure -size 100x100 -color blue -foo bar script.msl

SEE ALSO

       ImageMagick(1)

COPYRIGHT

       Copyright (C) 1999-2010 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see  file:///usr/share/doc/pack-
       ages/ImageMagick/www/license.html or http://www.imagemagick.org/script/license.php

ImageMagick						     Date: 2009/01/10 01:00:00							conjure(1)
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