The mapping from keyboard keys to modifiers like Meta and Control is handled by the X server (i.e. the low-level part of the GUI). This mapping can be manipulated through the old-style xmodmap command or the new-style XKB interface, or through a GUI configuration tools that uses one of these unde...
Keyboards send events to the computer. An event says “scan code nnn down” or “scan code nnn up”. At the other end of the chain, applications running in a terminal expect input in the form of a sequence of characters. When you press A, the keyboard sends the information “scan code 38 down”. The co...
First, you can stop SELinux from working by misconfiguring it. That does nothing to disable any backdoor, though.
Then you can stop SELinux from doing anything by configuring it at runtime. If you run setenforce 0, SELinux stops enforcing security restrictions. It's still active, though. All you...
AFAIK the only way to be completely sure of security would be to write a compiler in assembly language (or modifying the disk directly yourself). Only then can you ensure that your compiler isn't inserting a backdoor - this works because you're actually eliminating the compiler completely.
From ...
On the CLI, sometimes a command I type takes a while to complete, and sometimes I know when that's about to happen. I'm a bit confused on "backgrounding" and such in Linux.
What is the most common (or user-friendly way) of telling the CLI that I don't want to wait, please give me back my prompt ...
When I type firefox in terminal, it starts Firefox but the terminal "hangs".
What is happening behind the scenes?
Can I open Firefox from terminal and keep on using the same terminal tab for other things without closing Firefox?
@strugee I get 43MB for a freshly-started interactive zsh and 22MB for a bash with my configuration (which loads a handful of modules). That's virtual memory, i.e. including all code and data whether it's ever loaded into RAM or not
I wonder if they are going to change the now so appropriate background colour of the new top-bar from black after the period of mourning for the loss of the old one is over.
I'm trying to launch a script when a LUKS drive is inserted. So I setup a udev rule:
KERNEL=="sd*3", ACTION=="add", ATTRS{serial}=="XXX", ATTRS{manufacturer}=="XXX", RUN+="/usr/local/bin/syncer-trigger /dev/%k"
The script runs as normal user and calls xce4-terminal internally. Then the terminal...
Random guess: maybe use $devnode/%N instead of /dev/%k. I believe $devnode should already be set up... E.g., that's how mdadm's rules do it: ACTION=="add", RUN+="/sbin/mdadm --incremental $devnode --offroot" ... but this is only a guess, and I'm not at all confident it will help. I wouldn't be surprised if udev won't process the next event (LUKS drive) until its done with the current event. In which case, need to find a way to get udev to not kill your terminal... — derobert3 mins ago
I'm pretty surprised udev is managing to kill the terminal.
I think you're down a level too deep in trying to do this with UDEV. Rather I'd try and do it with D-BUS instead.
I found this tutorial titled: JACKdbus - Desktop integration - backend-switching that discusses how, using dbus-triggerd. The tutorial is meant for OSX but should be adaptable to sui...
ugh. I can't deal with the black. everything else I'm OK with but the black is so clashy with the color scheme of every Stack Exchange site ever
so I came back to this tab to find that somehow a bug had caused the orange chat buttons and the blue background and the text box to change to black. coincidence?
@derobert @Braiam - to me a script is anything that is reflected in a sequence of commands, that's contained in a executable file. The executable file should be of a textual nature, and not strictly binary.
Since I can't see my vote count easily anymore, I'm trying to ration my votes, sticking to “this is grossly wrong”, “I learned something”, “this question is downright stupid” or “this question is very interesting”
and no longer for a mere correct answer with a nice explanation
so you guys should vote more to compensate!
at >50 questions per weekday, a lot of people should be hitting the vote cap frequently
@Gilles - obviously I'm here most of the day so I interact with the late ones through the review queue, and also just through my poking around through-out the day. I also like to find Q's w/ answers w/o an accept, and vote those up where they're right, this helps to close the gap if there wasn't one accepted.
Sysadmin since '95. Never heard of disown until today, thanks! It doesn't work with every shell though (checked bash, zsh, tcsh. tcsh did not work). — yoonix21 hours ago
When I type firefox in terminal, it starts Firefox but the terminal "hangs".
What is happening behind the scenes?
Can I open Firefox from terminal and keep on using the same terminal tab for other things without closing Firefox?
I'm trying to launch a script when a LUKS drive is inserted. So I setup a udev rule:
KERNEL=="sd*3", ACTION=="add", ATTRS{serial}=="XXX", ATTRS{manufacturer}=="XXX", RUN+="/usr/local/bin/syncer-trigger /dev/%k"
The script runs as normal user and calls xce4-terminal internally. Then the terminal...
It's just that the children are worried and so am I. Is it safe?
