Disk Capacity Shell Script Post: 302613137

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Homework and Emergencies Homework & Coursework Questions Disk Capacity Shell Script Post 302613137 by agama on Monday 26th of March 2012 07:59:19 PM

03-26-2012

Registered User

A few things I noticed:

1) you need to read into a variable (I assume output). The syntax would be something like command | while read output. Possibly this is a cut/past error when sharing your code.

2) You are missing ending double quotes in your echo statements that are being used to fill the body of the mail.

3) Your mail commands need to be on the same line as your echo (this might have been a copy/past problem and not something wrong in your code)

4) You are assigning the percentage and partition backwards. The output from the df command is partition ($1) then percentage ($2), but you are assigning percentage from $1 and partition from $2.

5) The reason you are getting 'missing ]' errors is because you cannot use && as a part of a single bracketed expression. The easy fix is to make this two expressions:

Code:

if [ $a = "foo" ] && [ $b = "bar" ]
then

I'm not sure that old Bourne shell (sh) supports this, so you might consider using ksh or bash instead.

Hope these suggestions get you going again.

---------- Post updated at 19:59 ---------- Previous update was at 19:52 ----------

Also thought I'd toss in a quick trick. You could make things a bit more efficient by reading directly into your percentage and partition variables. Consider this small script:

Code:

ls -al | awk '{printf( "%d %s\n", $5, $NF}' | while read size name
do
    echo "name=$name size=$size bytes"
done

Using printf with %d will also remove your trailing percent sign without the need for invoking a cut process.

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LEARN ABOUT DEBIAN

script-email

SCRIPT-EMAIL(8) 					  System Administration Commands					   SCRIPT-EMAIL(8)

NAME

       script-email - Amanda script to send email notifications

DESCRIPTION

       script-email is an Amanda script implementing the Script API. It should not be run by users directly. It sends a notification email to the
       addresses specified in the MAILTO property.

PROPERTIES

       This section lists the properties that control script-email's functionality. See amanda-scripts(7) for information on the Script API,
       script configuration.

       MAILTO

	   List of email addresses that will receive an email on command execution. It is a multi-valued property:
	     property "MAILTO" "amanda@domain.com" "sysadmin@domain.com" "amandauser@domain.com"

EXAMPLE

       In this example, script-email is scheduled to be run before the DLE, on the server.  The unqualified email address amanda will be passed to
       the email system unchanged.  The script is then attached to a dumptype, which can then be specified for any DLEs which require
       notification.
	define script-tool pre-email {
	  comment "email me before this DLE is backed up"
	  plugin  "script-email"
	  execute-on pre-dle-backup
	  execute-where server
	  property "mailto" "amanda"
	}

	define dumptype user-tar-email {
	  user-tar
	  script "pre-email"
	}

SEE ALSO

       amanda(8), amanda.conf(5), amanda-client.conf(5), amanda-scripts(7)

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHORS

       Jean-Louis Martineau <martineau@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

       Dustin J. Mitchell <dustin@zmanda.com>
	   Zmanda, Inc. (http://www.zmanda.com)

Amanda 3.3.1							    02/21/2012							   SCRIPT-EMAIL(8)

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