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Full Discussion: Strange thing with 'cut' in a script
Top Forums Shell Programming and Scripting Strange thing with 'cut' in a script Post 302303409 by sport on Thursday 2nd of April 2009 02:25:08 PM
Old 04-02-2009
Question Strange thing with 'cut' in a script
When I run the script I have just created, I get a strange scenario around the following code:
echo "Check for duplicate UID's, each user should have a unique user ID (UID)"
echo "IF a UID is displayed fix or document why it is required!"
echo "Press enter to continue!"
read a
cut -d: -f3 /etc/passwd | sort -n | uniq -d
echo
echo "Verify current directory (.) does not exist in root's PATH!"

after going through most of the script and using the 'read a' as a pausing mechanism, when I hit enter at the above point instead of getting the correct value returned from the cut line, it just sits at a cursor, and hangs; it just adds a line for everytime you hit return. Now if I take the 'read a ' out at this point and just let it run right through the string works as it is supposed to. Can anyone see why it would behave in this fashion?
 

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LEARN ABOUT SUNOS

echo

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)
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