topic Re: Script Help in Operating System - HP-UX

Script Help

Nobody's Hero — Thu, 26 Jan 2006 13:56:47 GMT

What does this mean in a script?

if [ "ping_status" ];

Re: Script Help

baiju_3 — Thu, 26 Jan 2006 14:20:21 GMT

Which Script was it , perl , ksh ,sh ?

Regards ..bl.

Re: Script Help

Nobody's Hero — Thu, 26 Jan 2006 14:25:56 GMT

ksh

Re: Script Help

Pete Randall — Thu, 26 Jan 2006 14:30:03 GMT

Robert,

I can't decipher the [, &#93. Did you cut and paste, by any chance or is that the way it appears in the script?

Pete

Re: Script Help

Geoff Wild — Thu, 26 Jan 2006 14:31:53 GMT

The [ is really the square intro bracket [ and the 93 ]

Cut 'n'paste issue in the forums...

if [ "ping_status" ];

Rgds...Geoff

Re: Script Help

Chan 007 — Thu, 26 Jan 2006 14:33:52 GMT

Provide the complete script, I guess there is a mistake/typo in what you have pasted..!!

Chan

Re: Script Help

Nobody's Hero — Thu, 26 Jan 2006 14:34:23 GMT

#! /bin/sh

host=`cat ipfile`
for item in $host
do
echo "Checking $host..."
ping_status=`ping $host 10|grep 'no answer'`
if [ "ping_status" ]; then
echo "$host NOT RESPONDING"
echo " "
continue
fi
echo "$host UP"

Re: Script Help

Geoff Wild — Thu, 26 Jan 2006 14:37:44 GMT

Should be:

#! /bin/sh

host=`cat ipfile`
for item in $host
do
echo "Checking $host..."
ping_status=`ping $host 10|grep 'no answer'`
if [ "ping_status" ]; then
echo "$host NOT RESPONDING"
echo " "
continue
fi
echo "$host UP"

It is checking for a condition - if ping_status contains "no answer" then it will echo $host not responding.

Rgds...Geoff

Re: Script Help

Sandman! — Thu, 26 Jan 2006 15:26:47 GMT

Robert,

The test part (if statement) is missing some constructs alongwith an else and done statements.

=============================================
#! /bin/sh

host=`cat ipfile`
for item in $host
do
echo "Checking $host..."
ping_status=`ping $host 10|grep 'no answer'`
if [ "$ping_status" ]; then
echo "$host NOT RESPONDING"
else
echo "$host UP"
fi
done
=============================================

cheers!

Re: Script Help

Geoff Wild — Thu, 26 Jan 2006 16:39:10 GMT

Just realized this is for solaris - your if statement should have -ne 0

#! /bin/sh

host=`cat ipfile`
for item in $host
do
echo "Checking $host..."
ping_status=`ping $host 10|grep 'no answer'`
if [ "ping_status" -ne 0 ]; then
echo "$host NOT RESPONDING"
echo " "
continue
fi
echo "$host UP"
done

Rgds...Geoff