What is $@ - used with 'eval' 2

[1DMF]

Hi,

I've found that when using eval as a try/catch clause any errors are placed into $@ , but what is this strange variable.

The built in defaults usually have an underscore with them @_ , $_ etc.

I've tried Googling , but there search algorithm can't handle $@ even if placed in quotes

Thanks,
1DMF

"In complete darkness we are all the same, only our knowledge and wisdom separates us, don't let your eyes deceive you."

"If a shortcut was meant to be easy, it wouldn't be a shortcut, it would be the way!"

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[dkyrtata]

Perl has many such variables. They are internal variables that Perl sets. Perl 5 introduced a verbal names for each of them (which are not available by default).

Here are some more examples:
$@ = $EVAL_ERROR
$] = $PERL_VERSION
$$ = $PROCESS_ID
$. = $INPUT_LINE_NUMBER
$^O = $OSNAME

 

[MillerH]

[link]http://perldoc.perl.org/perlvar.html[/url]

- Miller

 

[1DMF]

Thanks guys, much appreciated.

Though according to perlvar '$]' & '$[' are deprecated.

regards
1DMF



"In complete darkness we are all the same, only our knowledge and wisdom separates us, don't let your eyes deceive you."

"If a shortcut was meant to be easy, it wouldn't be a shortcut, it would be the way!"

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