Bruno Haible <[EMAIL PROTECTED]> writes: > You also combined adjacent sed invocations. Which rule are you using here? > When is it safe to combine > sed -e "$expr1" | sed -e "$expr2" > into > sed -e "$expr1" -e "$expr2" > ?
That's a tricky question to answer in general, but if $expr1 and $expr are both simple s/foo/bar/ commands (which is the case here) the transformation is always safe.