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Top Forums Shell Programming and Scripting Simple CEC run command on event script Post 302990165 by barrydocks on Monday 23rd of January 2017 09:04:20 AM
Old 01-23-2017
I am assuming this might work?
Code:
/opt/vc/bin/tvservice -M | grep -q "HDMI is attached" && RunCommand

---------- Post updated at 02:04 PM ---------- Previous update was at 01:35 PM ----------

So my bash script would look like this:
Code:
#!/bin/bash 
while : 
do     
/opt/vc/bin/tvservice -M | grep -q "HDMI is attached" && RunCommand 
done


Last edited by barrydocks; 01-23-2017 at 10:05 AM.. Reason: typo
 

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service(8)						      System Manager's Manual							service(8)

NAME
service - run a System V init script SYNOPSIS
service SCRIPT COMMAND [OPTIONS] service --status-all service --help | -h | --version DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working directory set to /. The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start command. service --status-all runs all init scripts, in alphabetical order, with the status command. EXIT CODES
service calls the init script and returns the status returned by it. FILES
/etc/init.d The directory containing System V init scripts. ENVIRONMENT
LANG, TERM The only environment variables passed to the init scripts. SEE ALSO
/etc/init.d/skeleton, update-rc.d(8), init(8), invoke-rc.d(8). Jan 2006 service(8)
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