script for File exist or not...

[friend_1]

Hi,

one application is running on my server. that application will create one log file . when creating that log file automatically send mail from that server.that log file will be available for some time then i will be deleted. after deleting that file i should receive mail .

How to write sript for this? please help

Thanks in advance

[Goran Koruga]

Hello.

Use your shell's test built-in:

man 1 test
man bash

For bash this is documented under CONDITIONAL EXPRESSIONS section of the man page.

The most trivial:

if [ -f /path/to/file ]
then
echo file exists
else
echo file not there
fi

Another option is to use inotify subsystem with tools like incron, inotify-tools or iwatch.

Regards,
Goran

[Andrew Cowan]

You could also use:

if [ -r file]

because if it is there but you can't read it due to permissions, it won't be a lot us of use to you?