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Full Discussion: Help with Bash piped while-read and a read user input at the same time
Top Forums Shell Programming and Scripting Help with Bash piped while-read and a read user input at the same time Post 302601429 by MyMorris on Thursday 23rd of February 2012 04:09:11 PM
Old 02-23-2012
Thanks, will this lock the while loop and wait for user input? I want the script to react and run the wile loop if something happens in the server.log file as well.

Quote:
Originally Posted by Corona688
Read user input from /dev/tty, to avoid accidentally reading input from the pipe or file instead. /dev/tty will always be the current terminal, if any.

Code:
... | while read LINE
do
        printf "prompt: "
        read USERINPUT </dev/tty
done

 

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LEARN ABOUT SUSE

setconsole

SHOWCONSOLE(8)						       The SuSE boot concept						    SHOWCONSOLE(8)

NAME

       Showconsole - determines the underlying tty of stdin
       Setconsole - sets the underlying tty of /dev/console

SYNOPSIS

       showconsole [-n]

       setconsole /dev/tty<xy> < /dev/console

DESCRIPTION

       showconsole  determines the underlying character device of the current stdin.  This can be used on /dev/console as current character device
       to get the real character device back.

       setconsole sets the underlying tty of the system console /dev/console.  This requires that the standard input is identical  with  /dev/con-
       sole and exactly one argument, a valid character device is given.

OPTIONS

       -n     Return  the  major and minor device numbers instead of the device file name.  This can be used to asked the kernel for the major and
	      minor device numbers of a not existing device file in /dev.

BUGS

       showconsole needs a mounted /proc file system and tries to set the controlling tty to stdin if no controlling tty is found.  After  reading
       /proc the status of the controlling tty is restored to avoid problems with getty processes.

FILES

       /proc/<pid of showconsole>/stat
	      the stat file of the showconsole process.

       /dev/console
	      the system console.

SEE ALSO

       blogd(8), console(4), tty(4), proc(5).

COPYRIGHT

       2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany.

AUTHOR

       Werner Fink <werner@suse.de>

3rd Berkeley Distribution					   Nov 10, 2000 						    SHOWCONSOLE(8)
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