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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 OPENSOLARIS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a    Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.11							    30 Jan 2004 							 script(1)
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