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Top Forums Shell Programming and Scripting throw a generic message upon error Post 302256408 by cesarNZ on Sunday 9th of November 2008 08:49:23 PM
Old 11-09-2008
throw a generic message upon error

hi all,
in ksh, is there a way to throw a generic error message. i have lots of commands in my script and i didnt want to put

if [ $? -eq 0 ] ; then
doStuff();
else
print "an error occured, please run script again";
fi


around all the commands used. is there a way detect a command has failed and to make it throw the above error message ??

thanks in advance.
 

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Mojo::Exception(3pm)					User Contributed Perl Documentation				      Mojo::Exception(3pm)

NAME
Mojo::Exception - Exceptions with context SYNOPSIS
use Mojo::Exception; my $e = Mojo::Exception->new; DESCRIPTION
Mojo::Exception is a container for exceptions with context information. ATTRIBUTES
Mojo::Exception implements the following attributes. "frames" my $frames = $e->frames; $e = $e->frames($frames); Stacktrace. "line" my $line = $e->line; $e = $e->line([3, 'foo']); The line where the exception occured. "lines_after" my $lines = $e->lines_after; $e = $e->lines_after([[1, 'bar'], [2, 'baz']]); Lines after the line where the exception occured. "lines_before" my $lines = $e->lines_before; $e = $e->lines_before([[4, 'bar'], [5, 'baz']]); Lines before the line where the exception occured. "message" my $message = $e->message; $e = $e->message('Oops!'); Exception message. "raw_message" my $message = $e->raw_message; $e = $e->raw_message('Oops!'); Raw unprocessed exception message. "verbose" my $verbose = $e->verbose; $e = $e->verbose(1); Activate verbose rendering, defaults to the value of "MOJO_EXCEPTION_VERBOSE" or 0. METHODS
Mojo::Exception inherits all methods from Mojo::Base and implements the following new ones. "new" my $e = Mojo::Exception->new('Oops!'); my $e = Mojo::Exception->new('Oops!', $files, $name); Construct a new Mojo::Exception object. "throw" Mojo::Exception->throw('Oops!'); Mojo::Exception->throw('Oops!', $files, $name); Throw exception with stacktrace. "to_string" my $string = $e->to_string; my $string = "$e"; Render exception with context. "trace" $e = $e->trace; $e = $e->trace(2); Store stacktrace. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::Exception(3pm)
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