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Comment by michaelmior | Hacker News Reader

> tr - lets you deal with line endings, which sed can't

I'm not sure what you mean by "deal with line endings", but sed can operate across multiple lines.

Maybe is meant you can remove the carriage returns easily, in case you want only the line feed on the end of the line.

I mean directly operating on the line ending itself. e.g. remove all lines or replace `\n` with the record separator, etc.

Like so?

    % echo 'one\ntwo\nthree' | sed -e 's,$, four,'
    one four
    two four
    three four

No, like this:

    > echo ‘one\ntwo\nthree’ | tr \n \|
    one|two|three

echo -e 'one\ntwo\nthree' | sed -ze 's/\n/|/g'

Hey, thanks for teaching me that!