Subtract seconds (math) [Help]

[juanamores]

In the file "djhora" I have stored the time value "count4d" .
What I want is to recover this value and subtract it to the current time .
If the result is equal to 180 seconds then execute a command.

Code: Select all

.....more commands.....
if {![file exists djhora]} { 	
	set count4d [clock seconds] 
	    	
	set temp [open "djhora" w+]
    puts $temp "$count4d"
	close $temp
	}

set temp [open "djhora" r]
set djh [gets $temp]
close $temp

	if {[expr {[clock seconds] - $djh}] == 180} { do more commands..... }

What is wrong ?

[willyw]

Are you sure you want to use == ?

Whatever you are doing, won't it be difficult to hit it exactly on 180 seconds?

Perhaps you want >= or <= ?

[juanamores]

Thanks willyw, work fine!