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Full Discussion: Testing connection with a script
Top Forums Shell Programming and Scripting Testing connection with a script Post 302351310 by KimJensen on Tuesday 8th of September 2009 06:33:02 AM
Old 09-08-2009
Hello there,
thank you for the reply! I guess I didn't make myself clear.
I only need to test if the connection is up the 'aliveness' of the B
server is uninteresting at this point.

I have tryed something like this:

#!/bin/bash
ping hostB -c3 -W3 > /dev/null
echo $? > A
if grep 0 /home/sipp/A > /dev/null
then exit;
elif
grep 1 /home/sipp/A
then
until grep 0 /home/sipp/A > /dev/null
do
[a command]
done
fi

my problem is that the loop keeps looping even if the connection is up again?

Regards KimJ
This User Gave Thanks to KimJensen For This Post:
LinuxRacr
 

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LEARN ABOUT LINUX

zegrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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