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Full Discussion: Intermittent problem reading from an input file.
Top Forums UNIX for Dummies Questions & Answers Intermittent problem reading from an input file. Post 302332992 by Wallygooo32 on Friday 10th of July 2009 02:38:25 PM
Old 07-10-2009
Thanks for the extra info. It makes more sense now that I know you were assuming i was running it like this:
cat $file|yourscript.ksh

The source file is basically static so the file it reads through is hardcoded into the script - i don't pass anything to the main ksh script.

I made a copy of the script and I'm trying a variation of what you suggested. I changed the read loop so that it greps the file prior to reading the lines. I removed the cat statement since it seem like it might be a UUOC - if there's a good reason to cat the file then pipe to grep let me know. Here's the read loop I'm testing.

Code:
grep -v "#" ${C}sourcefile | while read ROUTER EIGRPNEI PROBLEMCOUNT
do
    ${C}report.exp $ROUTER $b $c $d > ${C}${ROUTER}.txt 2>/dev/null &
done
wait

Thanks again!!

---------- Post updated at 02:38 PM ---------- Previous update was at 02:30 PM ----------

Tony,

i tried your suggestion and still had some problems...thanks for the idea though.
 

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LEARN ABOUT SUNOS

break

break(1)							   User Commands							  break(1)

NAME

       break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until	loop

SYNOPSIS

   sh
       break [n]

       continue [n]

   csh
       break

       continue

   ksh
       *break [n]

       *continue [n]

DESCRIPTION

   sh
       The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels.

       The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop.

   csh
       The  break  utility  resumes  execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current
       line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line.

       The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop.

   ksh
       The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified,	then  break  n	levels.  If  n	is
       greater than the number of enclosing loops, the outermost enclosing loop shall be exited.

       The  continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n-
       th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a  vari-
	   able  assignment.  This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera-
	   tion are not performed.

ATTRIBUTES

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

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

SEE ALSO

       csh(1), exit(1), ksh(1), sh( 1), attributes(5)

SunOS 5.10							    17 Jul 2002 							  break(1)
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