why not match what you _do_ want, rather than not matching what you don't want:
if ($line=~/^\w+:\s+\w+(@\S|)/) {
    &i_match();
}
else {
    &i_dont_match();
}

[download]

this will also handle local forwards since this is acceptable:
username: user2

[download]
Update:this _wont_ handle email addresses correctly (i just blindly grab everything after the @ and assume it's correct. To correctly check for valid email addresses, look here.

BlueLines

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In reply to Re: looking for aliases(5)-style entries in a text file by BlueLines
in thread looking for aliases(5)-style entries in a text file by greenmoss

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