Hi,

what dragonchild said is correct... What variable are you substituting on?

if Metacharacter found inside the variable use 'quotemeta' or '\Q' and '\E'

$line='Sampel Text <a href="somefilename(x)withanumberedhash.htm#666">
+';
$somethingelse='ok';
$var = '<a href="somefilename(x)withanumberedhash.htm#666">';

$var=quotemeta($var);
$line=~s@$var@$somethingelse@;
[download]

or

$line=~s@\Q$var\E@$somethingelse@;
[download]