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Full Discussion: Ping script using Redhat and BAsh
Top Forums Shell Programming and Scripting Ping script using Redhat and BAsh Post 37143 by google on Friday 13th of June 2003 06:57:08 AM
Old 06-13-2003
Re: Ping script using Redhat and BAsh
Quote:
Originally posted by edkung
Needed:

A script that can run in cron doing:
ping of several hosts and notifying via email when they are unavailable.

using: bash on redhat linux box

actually here is the latest script:
#!/bin/bsh
#################################
for file in `cat iplist.txt`
do
ping -c 1 -A $file | grep errors | wc -l
read tom
echo $tom
if [ "$tom" != 0 ]
then
mail -s"Test" exx@xx.com
else
mail -s"Worked" exx@xx.com
fi
done
For starters, make sure that iplist.txt is in the correct directory. I assume it will always be in the same directory as the script? If not, add a path to the file name. Second, for the mail portion, try using sendmail as this is commonly installed on RedHat. To check the status of the ping command, use a variable to capture the status. Not sure what the return value is of that ping command, adjust the IF statement to match.

for file in `cat iplist.txt`
do
PING_TEST=0
PING_TEST=`ping -c 1 -A $file | grep errors | wc -l`
#read tom
#echo $tom
if [ $PING_TEST -ne 0 ]
#Use -ne (not equal) for integer comparison
then
sendmail -s"Test" exx@xx.com
else
sendmail -s"Worked" exx@xx.com
fi
done
Last edited by google; 06-13-2003 at 08:08 AM..
 

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LEARN ABOUT SUNOS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a	Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.10							    30 Jan 2004 							 script(1)
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