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Full Discussion: Controlling user input
Top Forums Shell Programming and Scripting Controlling user input Post 303038244 by Chubler_XL on Wednesday 28th of August 2019 09:29:31 PM
Old 08-28-2019
Since you specify using bash shell we can flush the input buffer using:

Code:
while read -rs -N 1 -t 0.1 2> /dev/null ; do : ; done

so your script would look like this:

Code:
#!/bin/bash

for i in 1 2 3; do
 echo "Ready?"
 sleep 2
 mpg123 $i.mp3
 echo "Ok now you can respond. Press 1 if you liked it, 2 if you didn't."
 while read -rs -N 1 -t 0.1 2> /dev/null ; do : ; done
 read -n 1 RESPONSE
done

These 2 Users Gave Thanks to Chubler_XL For This Post:
darwin_886 Neo
 

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LEARN ABOUT DEBIAN

aps2file

APS2FILE(1)						    BSD General Commands Manual 					       APS2FILE(1)

NAME

     aps2file -- printing to a file via apsfilter

SYNOPSIS

     aps2file [-D] [-Pqueue] [-Zoptions] [-ooutput] [input]
     aps2file [-h]

DESCRIPTION

     With aps2file you can direct the printer data generated by apsfilter(1) into an arbitrary file without the use of a spooler.

OPTIONS

     -h 	 show help screen
     -D 	 enable debug mode
     -Pqueue	 select a printer queue (different from the default one)
     -Zoptions	 use apsfilter command line options (comma-separated list)
     -ooutput	 direct data stream to output (default: stdout)
     input	 read data from input (default: stdin)

     Unlike printing with lpr(1), you can only use one input file at a time.

     Using aps2file is also the recommended way to create a debugging log of a failed printing attempt. If you include the -D flag, the apsfilter
     shell script will log every command and print it to stderr.  To save the output for inclusion into a bug report, you should therefore use a
     command of the sort
	   aps2file -D -o /dev/null [-P...] [-Z...] [input] 2> log.txt

NOTES

     aps2file only works correctly with entries in /etc/printcap that have been created by /usr/share/apsfilter/SETUP.

FILES

     /etc/printcap			 printer capability data base
     /usr/share/apsfilter/bin/apsfilter  apsfilter script

SEE ALSO

     apsfilter(1), apsfilter-bug(1), apspreview(1), apsfilterrc(5), printcap(5)

BUGS

     See apsfilter software center - http://www.apsfilter.org/ - for new versions, bugfixes and known bugs.

     Please use the new tool apsfilter-bug(1) to release bug- or problem reports. It automatically presents you a form in an editor window which
     asks you some standard questions.	If you save and quit the editor session, then this report is sent automatically via e-mail to the proper
     apsfilter mailinglist.

     If apsfilter fails to print something or prints it in a way you wouldn't expect and you want to report an apsfilter error then please save
     the debugging output of one print session using the new aps2file(1) utility by typing aps2file -D -Z options file > /dev/null 2> file.debug
     and including the debugging output in the file file.debug into the edit session of the apsfilter-bug utility, so that it is included into the
     mail to the apsfilter mailinglist.

     Please note that you need to run /bin/sh (Bourne Shell), bash or a compatible shell, so that the above mentioned output redirection works.
     Under C-shell (/bin/csh) or tcsh it would't work. If you don't know, then simply make sure you use the Bournce shell by typing /bin/sh or
     bash, then you should have no problems with redirection of stdout and stderr (> /dev/null 2> file.debug).

DOCUMENTATION

     See official apsfilter homepage
     http://www.apsfilter.org/handbook.html   Apsfilter Handbook including the Frequently Asked Questions (FAQ)

USER FORUM

     Please send questions to the official apsfilter help channel apsfilter-help@apsfilter.org.  The above section BUGS and the file
     HOWTO-BUGREPORTS tells you how to report bugs.  If you want to know how to troubleshoot your apsfilter installation, please read the manpage
     aps2file(1) and apsfilter-bug(1) as well as the Apsfilter Handbook carefully.

HISTORY

     The aps2file manpage has been written by Michael LoBin <phallobst@web.de> and first appeared in apsfilter V 7.1.0.

BSD
								   Dec 19, 2001 							       BSD
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