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Full Discussion: Redirection question
Top Forums Shell Programming and Scripting Redirection question Post 302519310 by radoulov on Tuesday 3rd of May 2011 04:32:00 PM
Old 05-03-2011
You could remove the redirect inside func2:

Code:
zsh-4.3.11[t]% cat t1.ksh 
#!/bin/ksh
func2()
{
  diff /tmp/jdlkwjdlkejew /tmp/djlkwejdlewdjew
}

func1()
{
  let counter=0
  while [ $counter -lt 5 ]
  do
   print -u2 "Error: In main function"
   func2
   let counter=$counter+1
  done

} >$OUTPUT_FILE 2>$ERR_FILE

OUTPUT_FILE=/tmp/junk.out
ERR_FILE=/tmp/junk.err
rm -rf $OUTPUT_FILE $ERR_FILE
func1
zsh-4.3.11[t]% ./t1.ksh 
zsh-4.3.11[t]% cat /tmp/junk.err 
Error: In main function
diff: /tmp/jdlkwjdlkejew: No such file or directory
diff: /tmp/djlkwejdlewdjew: No such file or directory
Error: In main function
diff: /tmp/jdlkwjdlkejew: No such file or directory
diff: /tmp/djlkwejdlewdjew: No such file or directory
Error: In main function
diff: /tmp/jdlkwjdlkejew: No such file or directory
diff: /tmp/djlkwejdlewdjew: No such file or directory
Error: In main function
diff: /tmp/jdlkwjdlkejew: No such file or directory
diff: /tmp/djlkwejdlewdjew: No such file or directory
Error: In main function
diff: /tmp/jdlkwjdlkejew: No such file or directory
diff: /tmp/djlkwejdlewdjew: No such file or directory
zsh-4.3.11[t]%

This User Gave Thanks to radoulov For This Post:
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LEARN ABOUT SUNOS

sccsdiff

sccs-sccsdiff(1)						   User Commands						  sccs-sccsdiff(1)

NAME

       sccs-sccsdiff, sccsdiff - compare two versions of an SCCS file

SYNOPSIS

       /usr/ccs/bin/sccsdiff [-p] -rsid -rsid [diff-options] s.filename

DESCRIPTION

       sccsdiff compares two versions of an SCCS file and displays the differences between the two versions. Any number of SCCS files may be spec-
       ified. The options specified apply to all named s.files.

OPTIONS

       The following options are supported:

       -p	       Pipe output for each file through pr(1).

       -rsid	       Specify a version corresponding to the indicated SCCS delta ID (SID) for comparison.  Versions are passed to diff(1) in the
		       order given.

       diff-options    Pass options to diff(1), including: -b, -c, -e, -f, -h, -u, -C number, -U number, and -D string.

FILES

       /tmp/get?????   temporary files

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsprot 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       diff(1), sccs(1), sccs-delta(1), sccs-get(1), sccs-help(1), sccs-prs(1), sccs-prt(1), what(1), sccsfile(4), attributes(5)

DIAGNOSTICS

       filename: No differences        If the two versions are the same.

       Use the SCCS help command for explanations of other messages. See sccs-help(1).

SunOS 5.10							    28 Sep 2001 						  sccs-sccsdiff(1)
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