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Full Discussion: ksh "while" loop within a csh script
Top Forums Shell Programming and Scripting ksh "while" loop within a csh script Post 101726 by bschnair on Sunday 12th of March 2006 12:10:21 PM
Old 03-12-2006
Thanks for the advice! I was pretty sure that the ksh snippet was a kludge from someone who wasn't a pro either.

HOWEVER... I had a feeling that the popular answer would be to move everything into ksh. That's where I have a problem. The csh script is a bit lengthy, and it does tasks before and after the ksh piece. I think it'll be quicker for me to convert the little ksh snippet into csh instead of the other way around.

Can you help out with that? Does csh have an equivalent to "while read"? I've tried the following:


cat $INFILE | \
while (set INPUTLINE = $<)
echo "$INPUTLINE 0000" >> $OUTFILE
end


But it gets hung up, as I think the "$<" part is waiting for input from the keyboard.

What would happen if I split the csh file into two parts, and did this?

#!/bin/ksh
part1.csh
[insert ksh 0000 snippet here]
part2.csh
 

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LEARN ABOUT OPENSOLARIS

suspend

suspend(1)							   User Commands							suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

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

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

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.11							    15 Apr 1994 							suspend(1)
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