Automating serial port communication on Linux?

Kermit is a serial communication app like minicom and it has its own script language, and I used it for some automatic upload on embedded devices. However, it is quite limited and/or buggy, so I finally switched to using python and pyserial. Whenever you deal with texte mode, like AT command set or speaking to a shell over a serial line, it is really powerful.

I discovered runscript ("$ man runscript"), a utility that adds an expect-like scripting ability to minicom. The expect behavior is useful to me since this device uses a proprietary interactive boot sequence. It's rudimentary but sufficient.

A script can be invoked when starting minicom with the "-S scriptname" flag, and specific text from within the script can be sent to a log file, which is useful when running minicom from a script. I haven't found a way to send console content to a log, so having an external script know what's going on inside minicom involves writing to a log and having the script monitor the log. I plan to use runscript only to restart and get to a shell, then ssh to the device for real interaction, within a higher level language script such as Python or Perl.

If minicom weren't already in place, I would take shodanex's approach.

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