Hugo Vanwoerkom wrote:
Hi,
On my way to elapsed time in a bash script, I created the do_chrono
command. It pumps the elapsed time to stdout.
So if I do:
a=do_chrono
and then:
$a
I get: 0:3:19.
Problem: I can't use that $a anywhere, e.g. if I say:
echo $a
I would expect to see 0:3:19 again, but I don't, it says
do_chrono
How do I use that $a in command parameters, like logger?
So this is the way it works now:
#!/bin/bash
a=do_chrono # elap to stdout
$($a) &> /dev/null # Suppress output 1st call clears the chronometer(1)
sleep 1
logger -t do_hibernate_prep =before sleep 4 $($a) # elap since (1)(2)
sleep 4
logger -t do_hibernate_prep =after sleep 4 $($a) # elap since (2)
exit 0
Produces:
Sep 29 09:21:27 debian do_hibernate_prep: =do_hibernate_prep before
sleep 4 0:0:1.30
Sep 29 09:21:31 debian do_hibernate_prep: =do_hibernate_prep after sleep
4 0:0:4.30
There probably are better ways of doing it.
Thanks for the answers, couldn't find that in the guide...
H
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