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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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getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. SunOS 5.10 30 Aug 2004 getusershell(3C)
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