-
Senior Member
registered user
Wanted: Bash program idea, or application suggestion
.
I would like to create a small bash program that would
monitor my keystroke activity and if no keystrokes are noted
within a fixed small time, then any currently active
internet connection would be disconnected.
I currently use a Knoppix LiveUSB and wifi via a broadband router
with network connections handled by NetworkManager.
If there's 'an app for this' already, then that might also serve.
Thanks in advance.
-
Senior Member
registered user
Hi utu, I do not have a bash script for you, but I have got some suggestions. First of all, you can disable and enable the network from the commandline by using the commands
Code:
nmcli networking off
and
Code:
nmcli networking on
I think the task is similar to a screensaver because in both cases user inactivity starts a process. I read about a user who wanted to download torrents while the screensaver is active. His or her solution was to ask dbus whether the screensaver was active. He or she used the Gnomedesktop environment. Later I read the solution has to be modified if KDE is used instead of Gnome. Since xscreensaver does not seem to use dbus I think you should try to find out if power management provides an interface to run one shell script on times of user inactivity and another if the user is active again. The absence of keyboard events should start a bash script, but what about mouse events? How long is a 'small time'? Do you intend to reconnect to the network if there is any keystroke activity again?
-
Senior Member
registered user
.
Thanks for your responses, klaus2008.
nmcli is probably part of the solution; I'll study up on that.
I should have indicated keyboard and/or mouse events as an indication or
lack of user presence or attention to internet events.
I think 'a small time' might be some random number between 15 and 30 minutes
as a starting point.
If I know I'm not going to use Knoppix for a while, I manually disconnect.
If I'm interrupted, I might forget to do this; I'd like Linux to disconnect
automatically, if need be. Solution need not consider re-connect, since that's
easy enough to do manually with the NM panel applet.
You can't underestimate my programming prowess. At most I may be able to
figure out a line of bash script. I wouldn't have a prayer with C/C+/or C++
source, even if I had it to look at.
-
Senior Member
registered user
.
Two other building blocks seem to be
Code:
xscreensaver-command -watch
and the following perl program, which tracks the output of the -watch command
and reacts accordingly:
Code:
#!/usr/bin/perl
my $blanked = 0;
open (IN, "xscreensaver-command -watch |");
while (<IN>) {
if (m/^(BLANK|LOCK)/) {
if (!$blanked) {
# **** action to take when screensaver starts ****
$blanked = 1;
}
} elsif (m/^UNBLANK/) {
# **** action (if any) to take when screensaver is reset ****
$blanked = 0;
}
}
I don't think perl should be necessary, and there is probably a simpler
bash equivalent that would suffice.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
Netac 1TB 2TB 512GB Internal SSD 2.5'' SATA III 6Gb/s Solid State Drive lot
$119.99
Fanxiang 4TB 2TB 1TB SSD 550MB/s 2.5'' SATA III Internal Solid State Drive lot
$188.99
Samsung 860EVO 500GB 2.5" Laptop SATA Solid State Drive V-NAND SSD Tested, Wiped
$34.99
Fanxiang SSD 4TB 2TB 1TB 512GB SATA SSD 2.5'' III Internal Solid State Drive lot
$108.29
Patriot P210 128GB 256GB 512GB 1TB 2TB 2.5" SATA 3 6GB/s Internal SSD PC/MAC Lot
$19.99
Samsung 250GB 2.5" SATA SSD MZ-76E250, Grade A+, SKU 10368
$19.99
Fanxiang M.2 SATA SSD 2TB 1TB 512GB 256GB SSD Internal M2 Solid State Drive Lot
$21.99
SanDisk 240GB SSD Plus, Internal Solid State Drive - SDSSDA-240G
$16.94
4tb Ssd 870evo Internal Solid State Drive Hard Disk 2.5 Inch Sata SSD For Laptop
$47.79
Netac 2TB 1TB 512GB 240GB Internal SSD 2.5'' SATAIII 6Gb/s Solid State Drive lot
$118.99