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tclexpectdos2unix

Convert expect output from DOS to UNIX style in realtime

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?

Solution

  • 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