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Full Discussion: shell replacing space with line breaks
Top Forums Shell Programming and Scripting shell replacing space with line breaks Post 302309280 by mshulman1980 on Tuesday 21st of April 2009 01:37:12 PM
Old 04-21-2009
Error shell replacing space with line breaks
I'm parsing through a large lslpp -Lc output file with a for loop. The file contains many lines similar to this:
zip:zip-2.3-3:2.3: : :C:R:A file compression and packaging utility compatible with PKZIP.: :/bin/rpm -e zip: : : : :0:

There appears to be no specialized or secret markup in the file.
However, when I try reading through the file in a loop while in a shell script, it breaks up every space as a line break, and each line break as a double break.
Below is the code:
Code:
#!/usr/bin/ksh
for i in `cat -n servername.lpp`
do 
echo "$i"
done

The strange thing is that cat does not seem to notice that the lines are being broken up, as indicated by the output below.
I also tried reading in the file with a second perl script (for i in `perl perlscript.pl) and got exactly the same problem.

Output from entering the

Output from script file:
Code:
 1
#Package
Name:Fileset:Level:State:PTF
Id:Fix
State:Type:Description:Destination
Dir.:Uninstaller:Message
Catalog:Message
Set:Message
Number:Parent:Automatic:EFIX
Locked:Install
Path:Build
Date
2
Java14.sdk:Java14.sdk:1.4.2.175:
:
:C:F:Java
SDK
32-bit:
:
:
:
:
:
:0:0:/:


I've also tried this with bash shell specified. I'm not sure how to resolve this. Any help would be appreciated.
Last edited by mshulman1980; 04-21-2009 at 02:38 PM.. Reason: Replaced quote tag with code tag to avoid auto emoticon insertion
 

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LEARN ABOUT PLAN9

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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