Loops within loops Post: 68740

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Top Forums Shell Programming and Scripting Loops within loops Post 68740 by bthomas on Wednesday 6th of April 2005 03:06:16 PM

04-06-2005

Registered User

Loops within loops

I am running on HPUX using ksh.

I have a script that uses a loop within a loop, for some reason the script seems to hang on a particuliar record. The record is fine and hits the condition in Blue. If I kill the 1st loop process the script continues on with no problem.

Code:

Begin code>

<Some other code>

cat $fileloc2 | while read line
do
  npanxx=`echo $line |cut -c1-6`
  ocn=`echo $line | cut -c10-13`
  brange=`echo $line |cut -c14-17`
  erange=`echo $line |cut -c18-21` 
  revnpa=`echo $npanxx|sed '/\n/!G;s/\(.\)\(.*\n\)/&\2\1/;//D;s/.//'`
  cat $ocnfile |cut -c1-4| while read input
  do 
    if [ $ocn = $input ]
     then
       if [ $pnpanxx != $npanxx ] and [ $frange != T ]
         then
            pnpanxx=$npanxx
            
            if [ $brange = 0000 ]
              then
                if [ $erange = 9999 ]
                  then
                    frange=T
                    sed 's/NPANXX/'$npanxx'/g;s/XXNAPN/'$revnpa'/g;s/Y/I/g' $hfile >> $tempfile
                   else
                     frange=F
                     erange=`expr $erange + 1`
                     sed '0001,'$erange'!d' $hfile > $temp
                     sed 's/NPANXX/'$npanxx'/g;s/XXNAPN/'$revnpa'/g;s/Y/I/g' $temp >> $tempfile
                     rm $temp
                 fi
             else
               frange=F
               brange=`expr $brange + 1`
               erange=`expr $erange + 1`
               sed ''$brange','$erange'!d' $hfile > $temp
               sed 's/NPANXX/'$npanxx'/g;s/XXNAPN/'$revnpa'/g;s/Y/I/g' $temp >> $tempfile
               rm $temp
          fi
      fi
   fi
 done
done

Edited -- Added code tags for readability.

Last edited by google; 04-06-2005 at 04:31 PM..

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LEARN ABOUT SUNOS

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 5.10							    30 Jan 2004 							 script(1)

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