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Top Forums Shell Programming and Scripting Error during Accessing Global variable inside function Post 302600849 by nitiraj.rathore on Wednesday 22nd of February 2012 08:57:23 AM
Old 02-22-2012
Error during Accessing Global variable inside function

Code:
emailid=myemail@xyz.com
taskName="DB-Backup"
starttime=`date`
email()
{
        subject="$taskName" ": " $* " at `date` "
        mutt -s "$subject" $emailid < /dev/null
}

email "Starting"
#do my stuff
email "Finished"

The above code gives following error
./dbbackup.sh: line 6: : : command not found
./dbbackup.sh: line 6: : : command not found

Basically the assignment of variable " subject="$taskName" ": " $* " at `date` " " causes the error because of using the $taskName in it. Because when i remove $taskName from it it gives no error. But this kind of assignment works outside the function.

I am relatively new to functions in shell and any help is appreciated.
Thanks
-Nitiraj
 

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Agent::Driver::Mail(3pm)				User Contributed Perl Documentation				  Agent::Driver::Mail(3pm)

NAME
Log::Agent::Driver::Mail - email driver for Log::Agent SYNOPSIS
use Log::Agent; require Log::Agent::Driver::Mail; my $driver = Log::Agent::Driver::Mail->make( -to => 'oncall@example.org', -cc => [ qw( noc@example.org admin@example,net ) ], -subject => "ALERT! ALERT!", -mailer => [ 'smtp', Server => 'mail.example.net' ] ); logconfig(-driver => $driver); DESCRIPTION
This driver maps the logxxx() calls to email messages. Each call generates a separate email message. The Mail::Mailer module is required. CONSTRUCTOR
make OPTIONS The OPTIONS argument is a hash with the following keys: -prefix An optional prefix for the message body. -to The destination addresses, may be a scalar containing a valid email address or a reference to an array of addresses. -reply_to The reply-to addresses, may be a scalar containing a valid email address or a reference to an array of addresses. -from The source address, must be a scalar containing a valid email address. -subject The subject line of the email message. -cc The carbon copy addresses, may be a scalar containing a valid email address or a reference to an array of addresses. -bcc The blind carbon copy addresses, may be a scalar containing a valid email address or a reference to an array of addresses. -priority The priority level for the email message. This is NOT related to the logging priority. -mailer A reference to an array containing the optional arguments to Mail::Mailer->new(). Generally, this can be omitted. NOTES
Thanks to Shirley Wang for the idea for this module. AUTHOR
Mark Rogaski <mrogaski@pobox.com> LICENSE
Copyright (C) 2002 Mark Rogaski; all rights reserved. See Log::Agent(3) or the README file included with the distribution for license information. SEE ALSO
Mail::Mailer, Log::Agent::Driver(3), Log::Agent(3). perl v5.10.0 2002-05-12 Agent::Driver::Mail(3pm)
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