Bash Script

[akshay_johari]

Hi Guys,

I need a help. I write a script that gives me the recently backed-up ear file.
Command is :

ls -1t *.ear*-EDT-* | head -1

Now, i want to implement a if-then-else clause for checking the ear and display a message.

Can anyone tell me how I can do it.

[papetova]

What exactly is it checking for?

For example, if the file exists:

if [ -f /path/to/file ]; then
echo $file exists!;
fi;

[akshay_johari]

Thanks a lot but tell me one more thing.
there is a file named "um.ear" and more than two files named "um.ear-Tue-Aug_08_16:14:25-EDT-2006" exist in the following path:
/usr/local/PServer41/server/nodes/My_Node

and I have to run the script from the following :
/usr/local/PServer41/server/nodes/My_Node/Maintenance

I am using the following for "um.ear-Tue-Aug_08_16:14:25-EDT-2006" file to get the latest file

if [ `ls -1t *.ear*-EDT-* | head -1` == "" ]
then
echo "No EAR found"
fi

Then I got the error "unary operator expected"

Please help me how I can solve it

[papetova]

Try this instead:

earfile=`ls -latro | grep "um.ear-" | head -1`;
if [ -z "$earfile" ]
then
echo "No EAR found"
else
echo "FOUND!"
fi

The error was due to it not finding the file and the way the condition was written.

[akshay_johari]

It's working.

Thanks a lot.

[papetova]

You're welcome.