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# 8  
Old 12-29-2001
Re: One Step Back

Quote:
Originally posted by darthur
Perderabo,

I tried your suggestion....

echo qmgrcount = $qmgrcount > /dev/tty


but this just outputs "qmgrcount =" when it gets to this part of the function.
This tells that the value of qmgrcount is null or just white space at the point of the echo. That is not what you expected, right? So you are zeroing in on the bug. Think what value you expected for qmgrcount. Until you fix the line that sets qmgrcount your script isn't going to work. You have effectively done this:
qmgrcount=""
just before your if statement. And as we said your if statement will only do something if qmgrcount is 0 or 1 or 2.

This is how I debug my scripts. I put in echo statements to see what values are being set to my variables. When I find a variable whose value doesn't look right, I work with the script until I get it right.

A few posts ago, you spoke of piping the output of wc -l to cut to extract the 8th field. That is crazy, there is no 8th field.
 

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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 5.11 5 Jun 2002 echo(3XCURSES)

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