/dev/chat

Q: `power/persist` file not found in USB device sysfs directory

7:51 AM

0

The file /usr/share/doc/linux-doc/usb/persist.txt.gz mentions that the USB-persist capability can be enabled for a given USB device by writing 1 to the file persist in that device's directory in /sys/bus/usb/devices/$device/power. This is said — if I understood correctly — to allow mountings of ...

linux kernel usb usb-drive kernel-modules

Q: Is it possible to execute a code in heap space?

8:12 AM

0

Hi All, I would like to know if i can execute a code piece sitting inside the heap space? Thanks, Sen

linux heap code

Q: `rsync -d --delete *.jpg` doesn't remove files that not exist on the origin location?

8:34 AM

0

Say I have Server A 001.jpg 002.jpg a.zip Server B hello.jpg rsync -d --delete server_a:*.jpg . It doesn't remove hello.jpg from server B, any idea how to archive this?

rsync

Q: Manupilating `/dev/video` with mplayer

8:48 AM

0

Is it posible to use the result of mplayer tv:// -vo caca ( viewing webcam as ascii art ) in skype or any other applications that utilize the webcam? Maybe something like this: /dev/video0 ---> mplayer ---> /dev/video1 Then skype could just use the video1 device... Any suggestions?

video mplayer

Q: Quickest way to change dir from /xxxxx/foo/yyyyyy to /xxxxx/bar/yyyyyy

12:47 PM

0

Using bash, what is the easiest way to 'replace' a given part of the current path with something else? If my current path is of the form /xxxxx/foo/yyyyy, how can I jump to the /xxxxx/bar/baz/yyyyy directory with the shortest command?

bash

Q: Appending text to end of a textfile

1:17 PM

0

How can I append a new line to a text file followed by current date and time?

command-line

Q: How to understand the kernel panic core dump output?

1:44 PM

0

This is the output i get when i run one of my applications: Kernel bug detected[#1]: Cpu 0 $ 0 : 00000000 00000000 0fffff00 0fffff00 $ 4 : c6800000 850b7780 8b0043c0 00000040 $ 8 : 000004ac 000004ac 00000002 844e8000 $12 : 00000000 feced300 8430d2ac 0000000a $16 : 00000040 000000fc 8b...

linux kernel-panic core-dump

Q: Is 'Shut down computer when finished' during Avidemux encoding stage useful?

2:06 PM

0

I get the option to Shut down computer when finished during encoding stage of Avidemux. Why would I want to do that??

avidemux

Q: How to re-encode a DVD into a single file?

2:36 PM

0

How do I do this without losing the quality of the source? The output container can be any format (mkv, avi, ogv, ...).

video dvd encoding

3:27 PM

0

Q: VI mode in freetalk

I somehow managed to get my freetalk into vi-mode. I'm just unsure how I did it (if I restart freetalk I get an emacs-mode). Anyone an idea?

command-line

Q: Graphical boot-up screen lost after upgrading the kernel

5:37 PM

0

I used the Ubuntu 10.10 alternate install CD to install Maverick to an encrypted partition on a USB stick. This worked perfectly, but after the first cycle of updates that took the kernel from 2.6.35-22 to 2.6.35-24 I no longer get the graphical boot screen that asks for my passphrase. Instead I ...

ubuntu

0

Q: FTP client with a good GUI?

I love linux because I get control over my system. But I do herald from the school of mac, where things are simple, beautiful, and powerful. I like it that way, as opposed to having lots of knobs and levers and everything. Does anyone know of a strong FTP client for linux that is in the vein of ...

ubuntu gnome ftp

Steven D

7:17 PM

@Gilles Your answer to unix.stackexchange.com/questions/5453/… is somehow quietly hilarious to me. "In Bash: cd $(zsh -c 'cd foo bar')"

@StevenD :D. That's like answering "How do I add two numbers in Java?" with Runtime.getRuntime().exec("perl -e 'print 2+2'");

@StevenD Granted, it's a little longer than ${PWD/foo/bar}, but there's an unsubtle hint that the asker may want to use a better tool

Steven D

7:32 PM

I am constantly amazed with the ZSH solutions to some of these problems. I've started to use it occasionally mostly because of how often it comes up here.

Using zsh all the time makes me completely unable to use tools like find, because I never need them

Less tongue-in-cheek: many people ask about “bash” but really mean “shell”, so I often also give zsh solutions where zsh has an advantage, and POSIX solutions when bash doesn't have much of an advantage

On that more generic answers business, I think retagging a bunch of [bash] questions as [shell] would be more productive than trying to merge gui and command-line

@Gilles It's the same problem as the CLI/GUI one though -- how do you know they meant "shell" and not "bash only"?

@MichaelMrozek it's different because the same answer can be both bash and generic shell

e.g. prompt questions would be bash-specific, but quoting questions are often shell-agnostic

@Gilles That's fine then, and I'm for editing those. If the answer is bash-specific though, we shouldn't edit the question to ask for all shell answers and then submit zsh answers

I'm sure there's plenty of the first category; often people don't know if the answer is going to be shell-agnostic or not. It's the same thing with distro questions when the answer doesn't vary by distro

7:47 PM

@MichaelMrozek Exactly, which is why answerers should do the retagging

I try to do it, but I often forget

And sometimes I don't know how general my answer is

Well, with shells I usually do, but not for distros

Or rather, I know that my answer applies to any Linux (say), but I don't know if there is a better answer for the OP's distro

Steven D

I really don't think that the GUI-command line thing makes sense. I'm not sure who it would help to generalize this question: unix.stackexchange.com/questions/5471/… to include every good command line client as well--unless the search is really so bad that it would be too difficult to find 2 questions both related to ftp clients

@StevenD agreed

also on “the search is really so bad”, I don't understand why they don't just put a Google button

I mean a good search would be nice (Google doesn't understand tags), but the current one often doesn't find posts

@Gilles There's a lot of fancy search options

@MichaelMrozek The fancy options are for refining searches. But it's happened several times that I just couldn't find an answer with SE search, and I could find it by entering more words in a Google search (more words because otherwise it would be on the 500th results page)

8:02 PM

Right, I just mean that's probably the reason they don't want to replace the search box with a Google search -- Google doesn't have options like that

Q: Why do all my DNS queries resolve to 192.168.1.251?

8:38 PM

0

All my queries on one machine on my network have suddenly started to resolve to 192.168.1.251. This machine was used as the DNS server by other machines, so I noticed it as soon as it started happening and have switched all other machines to use 8.8.8.8 directly, which works. The machines are a...

linux ubuntu dns

Q: What process created this X11 window?

9:08 PM

0

Given an X11 window ID, is there a way to find the ID of the process that created it? Of course this isn't always possible, for example if the window came over a TCP connection. For that case I'd like the IP and port associated with the remote end.

process x11

Q: Using zsh's line editor to wrap around subprocesses

9:35 PM

0

Is it possible to use zsh's built-in line editor (zle) to feed input to a subprocess? That is, I would like to run zlewrap mycommand where zlewrap is a zsh function and mycommand is any program that just reads lines from stdin; zlewrap would effectively provide zle's line edition capabilities to ...

zsh zle line-editor