Re: Matching @ in string

perl -e 'if ("h@t" =~ /(\@)/ ) { print $1 }'

"h@t" looks to Perl like you're trying to interpolate the array @t (the previous case doesn't because the quote ends the string early.

perl -e 'if ("h\@t" =~ /(\@)/ ) { print $1 }'

~~perl -e 'if (\'h@t\' =~ /(\@)/ ) { print $1 }'~~

should work fine.

Update: err, ooops :-)

-David

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Re^2: Matching @ in string by dwu (Monk) on Nov 22, 2007 at 13:28 UTC
cough $ perl -e 'if (\'h@t\' =~ /(\@)/ ) { print $1 }' -bash: syntax error near unexpected token `(' [download] Not sure why - does escaping the single quote not work?	[reply] [d/l]
Re^3: Matching @ in string by lima1 (Curate) on Nov 22, 2007 at 13:34 UTC
Because the bash does not change anything in the -e ' .. ' string. And `if (\'h@t\' =~ /(\@)/ ) {` [download] is no valid perl. And the -e string ends after `if (\`.	[reply] [d/l]