New line character problem with ksh on Redhat Linux Post: 302382265

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Top Forums Shell Programming and Scripting New line character problem with ksh on Redhat Linux Post 302382265 by rijeshpp on Tuesday 22nd of December 2009 10:09:47 PM

12-22-2009

Registered User

Thanks chipcmc for the reply. echo -e can be used an option work with Redhat Linux and need change in the code. I found echo -e option is not valid in AIX 5.3. I am interested a solution which should work on top all generic UNIX based OS such as Solaris, AIX and Redhat Linux. So echo -a option is not a solution here as my scripts is a generic one for the three OS.

Yes, thanks for pointing out this is a difference in echo, not ksh.

If I need to make the code changes then I could probably replace echo with printf statement.

The point i would like to make is why this change is applicable to Redhat Linux instead of making a standard? what was the intention for such change?

Sorry, the script uses ksh interpreter everywhere.

For example, a block from the code is below.

Code:

case ${helpLevel} in
       0) 
            echo  " "
            echo "This script require three parameters"
		    echo " "
		    echo "Usage: $0 [ {project short name} {corresponding ear filename} {was environment name} ]\n"
		    
		    echo "	-First parameter is the short name of project"
		    echo "	-Second parameter is the EAR file in moduleEAR\{projectName} folder corresponding to Project"
		    echo "	-Third parameter is the name of WAS environment\n"
 		    		    
		    echo "Valid project short name(s)\n"
		    showwasprojectName
            
            echo "\nValid WAS environment name(s)\n"
            showwasenvName
		    exit 1  
       ;;

Last edited by pludi; 12-23-2009 at 01:59 AM.. Reason: code tags, please...

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LEARN ABOUT SUNOS

noecho

echo(3XCURSES)						  X/Open Curses Library Functions					    echo(3XCURSES)

NAME

       echo, noecho - enable/disable terminal echo

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib 
       -R /usr/xpg4/lib -lcurses [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int echo(void);

       int noecho(void);

DESCRIPTION

       The  echo()  function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
       curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control  soft-
       ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.

RETURN VALUES

       Upon successful completion, these functions return OK. Otherwise, they return ERR.

ERRORS

       No errors are defined.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)

SunOS 5.10							    5 Jun 2002							    echo(3XCURSES)