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Full Discussion: confused with << EOF EOF
Top Forums Shell Programming and Scripting confused with << EOF EOF Post 302350702 by imipsita.rath on Friday 4th of September 2009 03:30:19 PM
Old 09-04-2009
confused with << EOF EOF

Hi friends ,
I am confused with << EOF
EOF
Most of the cases I found
Code:
sqlplus $db_conn_str << EOF
some sql staments
EOF

another exapmle is
Code:
 
#!/bin/sh
echo -n 'what is the value? '
read value
sed  's/XXX/'$value'/' <<EOF
The value is XXX
EOF

so I want to know what is it .
 

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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)
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