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Shell Programming and Scripting
Exit script if the user dosent enter any data within 5 seconds
Post 302298540 by frozensmilz on Tuesday 17th of March 2009 10:54:24 PM
03-17-2009
Exit script if the user dosent enter any data within 5 seconds
Hello friends,
Kindly help me in developing a script that asks user to enter a value and will wait for 5 seconds for the feedback. If there is no answer from the user the script will perform exit or it will continue doing something else
Ex: If yu have a multi OS system i believe while starting it will ask which one to boot and will wait for 30 seconds. The data about how much time remaining will also be dynamically displayed somewhere near to it.
Expected Output 1:
Do you want to continue (y/n) ?
Remaining seconds: 5
if the above is not possible, this one will count in background
Expected Output 2:
Do you want to continue (y/n) ?
the Remaining seconds will be updated dynamically. if this is not possible atleast the script should count in background.
Thanks.
Kindly help me in developing a script that asks user to enter a value and will wait for 5 seconds for the feedback. If there is no answer from the user the script will perform exit or it will continue doing something else
Ex: If yu have a multi OS system i believe while starting it will ask which one to boot and will wait for 30 seconds. The data about how much time remaining will also be dynamically displayed somewhere near to it.
Expected Output 1:
Do you want to continue (y/n) ?
Remaining seconds: 5
if the above is not possible, this one will count in background
Expected Output 2:
Do you want to continue (y/n) ?
the Remaining seconds will be updated dynamically. if this is not possible atleast the script should count in background.
Thanks.
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LEARN ABOUT OSX
rmcpping
RMCPING(8) System Manager Commands RMCPING(8) NAME
rmcpping - send RMCP Ping to network hosts SYNOPSIS
rmcpping [OPTION...] destination DESCRIPTION
rmcpping uses the RMCP Ping request datagram to elicit an RMCP Pong response from a remote host. The utility can be used to verify if a remote host supports RMCP or IPMI. The initial starting sequence number will be randomized. rmcpping will return 0 to the environment if it receives atleast 1 response from the remote host. Otherwise, it exits with a value of 1. OPTIONS
The following options are available -h Output help menu. -V Output version. -c count Stop after sending count packets. -i interval Wait interval seconds between sending each packet. The default is to wait for one second between each packet. -I interface address Set source address to specified interface address. Argument may be numeric IP address or name of device. -t timeout Time to wait for a response, in seconds. Default is five seconds. -v Verbose output. -s num Specify an initial starting sequence number. The default is to use a random initial sequence number. -d Turn on debugging. KNOWN ISSUES
It has been observed that some remote BMCs can get "confused" and delay packet responses if duplicate packets (with duplicate sequence num- bers) are sent in succession very quickly. There is no known way to cleanly deal with a "confused" BMC other than the wait awhile. Unlike ping(8), local network devicess (e.g. 127.0.0.1) cannot be "pinged". REPORTING BUGS
Report bugs to <freeipmi-users@gnu.org> or <freeipmi-devel@gnu.org>. COPYRIGHT
Copyright (C) 2007-2012 Lawrence Livermore National Security, LLC. Copyright (C) 2003-2007 The Regents of the University of California. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ORIGIN
Command and manpage based off ping(8). SEE ALSO
freeipmi(7), ping(8), ipmiping(8) http://www.gnu.org/software/freeipmi/ rmcpping 1.1.5 2012-06-15 RMCPING(8)