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Full Discussion: Return vs. Echo
Top Forums Shell Programming and Scripting Return vs. Echo Post 302284438 by cfajohnson on Thursday 5th of February 2009 01:21:59 PM
Old 02-05-2009
Quote:
Originally Posted by gagan8877
Can you please show me the syntax of how to check the exit code in getdata() ?

Code:
getdata
echo $?

If you want to check the error status of commands within getdata:

Code:
GetData()
{

prim_mach=`get_primary`
echo $?
gprim_mach=`is_primary`
echo $?

echo $prim_mach
echo $?
echo $gprim_mach
echo $?
}

Normally you would use a conditional expression and do something different depending on the exit code of the command.
 

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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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