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Top Forums UNIX for Beginners Questions & Answers Bash - here document on RHEL 6.8 and 6.9 servers aren't working Post 303040563 by Chubler_XL on Thursday 31st of October 2019 04:01:05 PM
Old 10-31-2019
Quote:
Originally Posted by greavette
I've also tested connecting to a RHEL 6 server multiple times to get the data I need. what I mean by this is instead of connecting to a RHEL 6 server once and collecting data I've tested connecting to a RHEL 6 for each command I need so connecting multiple times and there are no issues with the above commands I'm issuing.
This is the crux of it I think. On the first look at your code I was suspicious that the redirect of stderr on one of the commands was causing you to miss an error causing this. So some nice debugging on you part here allows us to rule this out.

What does concern me is the exec bash line. This is unusual and I'm having trouble understanding how the commands that follow make it to this shell.
I think another here-document may be called for!

Please try:
Code:
IFS=$'\t' read FLAVOUR HOSTNAME ACTIVE_KERNEL INACTIVE_KERNEL UPTIME <<- EOFREAD
        $ssh -qo StrictHostKeyChecking=no -o ConnectTimeout=1 user@$InputIP sudo -u user sh -s <<- EOFSSH | tr $'\n' $'\t'
        exec bash <<- EOFEXEC
        cat /etc/redhat-release 2>/dev/null || lsb_release -a 2>/dev/null | grep Description | cut -f2
        awk -F= '/^NAME/{print $2}' /etc/os-release 2>/dev/null || grep Red |cat /etc/redhat-release 2>/dev/null || lsb_release -a 2>/dev/null | grep Description | cut -f2
        hostname
        uname -r
        rpm -qa | grep '^kernel-[0-9]' |grep -vE `uname -r` | paste -sd \; || echo "Can't List Ubuntu Kernels"
        uptime | cut -d "," -f1
        exit
        EOFEXEC
EOFSSH
        )
EOFREAD

[/QUOTE]
This User Gave Thanks to Chubler_XL For This Post:
 

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MYSQL_CLIENT_TEST(1)					       MySQL Database System					      MYSQL_CLIENT_TEST(1)

NAME
mysql_client_test - test client API mysql_client_test_embedded - test client API for embedded server SYNOPSIS
mysql_client_test [options] [test_name] ... mysql_client_test_embedded [options] [test_name] ... DESCRIPTION
The mysql_client_test program is used for testing aspects of the MySQL client API that cannot be tested using mysqltest and its test language. mysql_client_test_embedded is similar but used for testing the embedded server. Both programs are run as part of the test suite. The source code for the programs can be found in in tests/mysql_client_test.c in a source distribution. The program serves as a good source of examples illustrating how to use various features of the client API. mysql_client_test is used in a test by the same name in the main tests suite of mysql-test-run.pl but may also be run directly. Unlike the other programs listed here, it does not read an external description of what tests to run. Instead, all tests are coded into the program, which is written to cover all aspects of the C language API. mysql_client_test supports the following options: o --help, -? Display a help message and exit. o --basedir=dir_name, -b dir_name The base directory for the tests. o --count=count, -t count The number of times to execute the tests. o --database=db_name, -D db_name The database to use. o --debug[=debug_options], -#[debug_options] Write a debugging log if MySQL is built with debugging support. The default debug_options value is 'd:t:o,/tmp/mysql_client_test.trace'. o --getopt-ll-test=option, -g option Option to use for testing bugs in the getopt library. o --host=host_name, -h host_name Connect to the MySQL server on the given host. o --password[=password], -p[password] The password to use when connecting to the server. If you use the short option form (-p), you cannot have a space between the option and the password. If you omit the password value following the --password or -p option on the command line, you are prompted for one. o --port=port_num, -P port_num The TCP/IP port number to use for the connection. o --server-arg=arg, -A arg Argument to send to the embedded server. o --show-tests, -T Show all test names. o --silent, -s Be more silent. o --socket=path, -S path The socket file to use when connecting to localhost (which is the default host). o --testcase, -c The option is used when called from mysql-test-run.pl, so that mysql_client_test may optionally behave in a different way than if called manually, for example by skipping some tests. Currently, there is no difference in behavior but the option is included in order to make this possible. o --user=user_name, -u user_name The MySQL user name to use when connecting to the server. o -v dir_name, --vardir=dir_name The data directory for tests. The default is mysql-test/var. COPYRIGHT
Copyright (C) 2007, 2010, Oracle and/or its affiliates This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/). MySQL 03/31/2010 MYSQL_CLIENT_TEST(1)
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