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Full Discussion: Shell script to accept user input on the fly
Top Forums Shell Programming and Scripting Shell script to accept user input on the fly Post 302817709 by Corona688 on Thursday 6th of June 2013 10:39:29 AM
Old 06-06-2013
Code:
#!/usr/bin/bash

touch /tmp/$$

( while [ -f /tmp/$$ ]
do
        sleep 1
done ) &

while read -n 1 INPUT
do
case "$INPUT" in
A)     echo "You typed A"
        ;;
Q)    echo "quitting"
        rm /tmp/$$
        break
        ;;
esac
done

wait

This User Gave Thanks to Corona688 For This Post:
Arun_Linux
 

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LEARN ABOUT OSF1

script

script(1)						      General Commands Manual							 script(1)

NAME

       script - Makes a transcript of terminal session

SYNOPSIS

       script [-a] [file]

       The script command makes a transcript of everything printed on your terminal.

OPTIONS

       Appends the transcript to file rather than writing it to file.

OPERANDS

       The name of an output file that will contain the transcript of the session.  If this parameter is omitted, the file typescript is written.

DESCRIPTION

       The transcript is written to file, or appended to file if the -a option is given.  If no file name is given, the transcript is saved in the
       file typescript.

       The script ends when the forked shell exits.

       This program is useful when you are using a CRT and want a hard-copy record of the dialog (for example, a technical writer might create	an
       example of a working session this way).

       If you specify the -a option and the file does not exist, it is created.

       If you do not specify the -a option and the file exists, it is replaced.

RESTRICTIONS

       The  script command requires a streams based terminal.  In single user mode, streams may not be enabled.  Under these circumstances, script
       will exit with no action.  If you are the superuser and need to run this command in single user mode, use the  following  special  instruc-
       tions.

   Enabling Streams
       If it is necessary to enable a streams environment in the single user mode, enter the command /sbin/init.d/streams.  This command is avail-
       able to the superuser only.

SEE ALSO

       Commands:  autopush(8), cat(1), echo(1), strsetup(8), tee(1)

       System Administration

																	 script(1)
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