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Top Forums UNIX for Advanced & Expert Users Hi, can some one help in selecting option in script Post 302486192 by PAKumar on Friday 7th of January 2011 10:03:48 AM
Old 01-07-2011
Thanks for your assistence

Thanks m.d.ludwig for given Idea:

What is the exact different between both:
1C) echo D | ./testconnectiontoDB
2C) ./testconnectiontoDB | echo D

As per my knowledge by using (1C) D option will be taken and it will get posted to the script it is running right as part of execution? (If I am wrong correct me ..)

In Second option (2C) .. why it wont work in the sameway ..

Please help me inunderstanding the exact difference between both ..

Thanks/-
 

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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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