Serial commands via shell script

bingo · 06-10-2007, 09:12 PM

I'm working on a simple security system for a relative's business, and I'd like a simple way to invoke a modem dial in a shell script. The modem is on /dev/ttyS0, and right now I'm just using pppd to dial, but I need something to just dial and hangup after about 10 seconds. Minicom works for sending manual commands, but I'm unsure about how to automate this. Any ideas? Thanks! ...Steve

theNbomr · 06-10-2007, 10:49 PM

C-Kermit is perfect for dealing with serial ports & modems, and is very scriptable.
--- rod.

bingo · 06-15-2007, 09:56 PM

Thanks for the feedback... since my requirements are so simple, I've been trying to use cu and chat, with no luck. What would a command line dial command look like? I can open a connection with cu, and send a dial command, but it isn't working for me to do this together with the -c option. Thoughts? ...Steve

paulsm4 · 06-16-2007, 12:14 AM

Hi, Bingo -

I have actually used "cu" and "tip" and "uucp" and the like in Lifetimes Past.

Trust me - theNbomr is right. If you want simple modem control of a serial TTY port, then Kermit is your best choice. For scripts, or for interactive use.

'Hope that helps .. PSM

2damncommon · 06-16-2007, 12:19 AM

Quote:

Originally Posted by paulsm4

Hi, Bingo -

I have actually used "cu" and "tip" and "uucp" and the like in Lifetimes Past.

Trust me - theNbomr is right. If you want simple modem control of a serial TTY port, then Kermit is your best choice. For scripts, or for interactive use.

'Hope that helps .. PSM

I was wondering if wvdial could be started and then shutdown with CTRL-C from a shell script to "just dial and hangup after about 10 seconds".