Convert expect output from DOS to UNIX style in realtime

Question

I write some expect scripts by connecting to a remote host through serial connection.

My problem is that the output of the spawned process (enabled with log_user 1) contains DOS-style endings (each line being terminated with ^M when reading logs in VIM).

I normally run dos2unix on all logs at the end of the expect session, to get rid of them. Can the conversion be done in real time?

Answer 1

It turned out the problem is really simple.

What I am doing with my scripts is calling them like below:

expect script.exp > mylog

As told in the description, mylog contains ^M line-endings when opened in Vim or using cat -v mylog.

To get rid of them in real-time, I just call now:

expect script.exp | tr -d '\r' > mylog