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Full Discussion: Nonblocking I/O in bash scripts
Top Forums Shell Programming and Scripting Nonblocking I/O in bash scripts Post 302245569 by cfajohnson on Friday 10th of October 2008 11:17:07 AM
Old 10-10-2008

Use stty and dd. Here is some sample code:

Code:
stty -echo -icanon time 0 min 0
while :
do
  key=$( dd bs=1 count=1 2> /dev/null; printf "." )
  key=${key%.}
  case $key in
    q) break ;;
    ?) printf "%d\n" "'$key" ;;
  esac
done
stty sane

 

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LEARN ABOUT OSF1

kkcd

kkcd(8) 						      System Manager's Manual							   kkcd(8)

NAME

       kkcd - Daemon that supports the Kana-Kanji conversion service

SYNOPSIS

       /usr/sbin/kkcd user-id group-id kkc-db

OPERANDS

       Identifies  the user being served by the daemon.  Specifies the group to which the user belongs.  Specifies the location of data needed for
       Kana-Kanji conversion.

DESCRIPTION

       The kkcd daemon supports Kana-Kanji conversion for the Japanese language and is available only when Japanese support subsets are  installed
       on the system.  The daemon converts an English or Kana string to one or more different Kanji strings and runs only when the Kana-Kanji con-
       version capability of the atty terminal driver is activated. The utx pseudo device driver acts as an communication channel between the atty
       terminal  driver and the kkcd daemon. The ikk parameter of the stty command spawns the kkcd and utx daemons (see stty(1)). The stty command
       also includes parameters for setting terminal line discipline, modes, input key sequences, and keymap data for Kana-Kanji conversion.

FILES

       The utx device special files

SEE ALSO

       Commands: stty(1), utxd(8)

       Files: atty(7), cp_dirs(4), utx(7)

       Others: Japanese(5), kkc(5)

																	   kkcd(8)
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