05-04-2012
Help needed with output-redirection based on output-messages
Hi Folks,
Scenario:
I used the following shell script to see ping status, and got a report out of that based on the standard output value, and it worked:
HTML Code:
for i in `cat /tmp/momin/servers`
do
echo PINGING $i....
ping $i 1
if [ $? -eq 0 ]
then
echo ping test passed!!!
echo $i >> /tmp/momin/passed
echo -------------------------------------------
else
echo ping Failed!
echo $i >> /tmp/momin/failed
echo --------------------------------------------
echo
fi
done
In the output I noticed three types of output messages:
1. ping: unknown host tordb2
2. no answer mondb1
3. vandb7 is alive
The hostnames with error messages 1 and 2 went to the 'failed' report file, and the hostnames with error message 3 were directed to the 'passed' file.
Help Needed Here:
What logic can I use in my shell script / scripted command, to generate 3 files based on the 3 messages?
Thanks in advance,
![Smilie Smilie](https://www.unix.com/images/smilies/smile.gif)
Momin
Last edited by momin; 05-04-2012 at 03:34 PM..
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LEARN ABOUT OPENSOLARIS
echo
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)
NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS
-n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)
NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.11 3 Aug 1994 echo(1B)