3
votes
2answers
786 views

Forcing emacs to run with `-nw` when called from terminal

note: This question might have been asked before ( I think I saw it somewhere), but a quick search did not reveal anything. I would like to tell the difference when a command is run from a shell. ...
14
votes
1answer
6k views

Number of files per directory

I have a directory with about 100000 small files (each file is from 1-3 lines, each file is a text file). In size the directory isn't very big (< 2GB). This data lives in a professionally ...
2
votes
1answer
698 views

Why are updates pushed to Fedora's updates-testing repos initially invisible?

I follow various bugs on Red Hat Bugzilla, and I just received a notification from the Fedora Update System that a new package was available for testing that supposedly fixes a bug I was interested ...
5
votes
5answers
9k views

How to do a print screen or capture an area of the screen

Is there an equivalent of the Window's Print Screen + Paste (or better yet the Mac OS Cmd+Shift+4, Space) in gnome?
7
votes
3answers
9k views

/etc/cron.daily/foo : Send email to a particular user instead of root?

I'm running CentOS 5.5. We have several cronjobs stored in /etc/cron.daily/ . We would like the email for some of these cronjobs to go to a particular email address, while the rest of the emails in ...
3
votes
2answers
404 views

Getting the number and names of windows in Xvfb

I am currently working with Xvfb to grab the screenshots of my programs. Is there a way to determine the number and the names of the windows that are currently "displayed" in Xvfb? Where can I find ...
1
vote
2answers
319 views

forwarding DHCP packets

I've got this configuration: WRouter ->(by wifi) Computer1 And I want to add another computer (computer2) connected by cable to computer1. Is it possible then to configure computer1 to forward ...
1
vote
1answer
245 views

No sound from cli apps or from zsnes

Some programs don't have sound, in particular ZSNES and anything I run from the command line. So my question has two parts: How can I diagnose this problem? (I'm thinking of a command like lspci ...
1
vote
1answer
462 views

How to get touchpad functional, again?

I messed something up and can't get my touchpad functional at all on GNOME 2.30 any more. I looked at Mouse Preferences on the Touchpad tab, and can't find the magic switch. The touchpad works on the ...
3
votes
2answers
3k views

How do I see what symlinks exist for a given directory?

I want to do some housekeeping in a directory, and I want to see if a given directory has any symlinks pointing to it. I can easily enough see what directory a symlink points to, but now I want to see ...
2
votes
1answer
1k views

How to uninstall RHEL from a dual-boot system?

I had RHEL 5 and WinXP on dual-boot and then from WinXP I deleted those partitions which were allocated to RHEL. Now I am not able to start my computer. The booting process stops at grub. I tried ...
2
votes
2answers
953 views

How to turn off permanent highlighting of all braces (not just pairs) in vim

I have no idea how I modified vim such that all braces are highlighted, not just matching ones, but I want to turn it off now. How do I do that? The usual highlighting of matching braces works fine.
3
votes
2answers
441 views

I need help with a cronjob to watch for runaway processes and kill them

I have an interesting situation, I have a runaway ruby process - I know exactly how I trigger it. Point is, it got me thinking about runaway processes (CPU usage or memory usage). How would one ...
9
votes
4answers
1k views

GRUB on USB Drive — adding OSes

Some Background: Coming from a largely Windows background (though I'm familiar with Ubuntu, etc.) and using a Windows 7 machine to complete this task Have gotten GRUB installed successfully to the ...
7
votes
2answers
1k views

red-green color blindness compatible vim theme

I am looking for a vim theme accessible to users with red green color blindness. In particular, the red text on a dark terminal background all but disappears. Do any of you know of a good theme? Or ...
7
votes
9answers
6k views

Find out if the OS is running in a virtual environment

Is there any way to find out if the OS I'm running (actually installing) is running in a VMWare machine. I need to disable ntp settings if the automated install is done on a virtual machine but keep ...
9
votes
2answers
853 views

What's the + in find /path/ -exec command '{}' + do?

What's the + in find /path/ -exec command '{}' + do? as opposed to find /path/ -exec command '{}' \;
6
votes
3answers
899 views

Deleting lots of files

I accidentally created 8 million files and every time I'm trying to delete them the server almost dies because of the rm process eating all disk IO (the server is remote without console). Should ...
7
votes
4answers
5k views

How can I get a base64 encoded shaX on the cli?

sha1sum outputs a hex encoded format of the actual sha. I would like to see a base64 encoded variant. possibly some command that outputs the binary version that I can pipe, like so: echo -n "message" ...
5
votes
2answers
3k views

How do I delete all files with a given name in all subdirectories?

I want to delete all files with a given name in all the subdirectories of my home directory. I tried: rm -r file in my home directory, but it didn't work because that file doesn't exist in that ...
2
votes
1answer
671 views

immutable-like flag for perms

Is there any chattr flag that would allow me to lock a file's unix permissons, and not change them without resetting the flag? The file itself should still be modifiable, I just want to prevent ... ...
5
votes
2answers
1k views

What file do I have to edit to make static DNS server in CentOS?

Almost every distro I know will wipe /etc/resolv.conf on reboot (I think DHCP does this) and thus the place to add static DHCP entries varies per distro. How do I add static DNS servers to a CentOS ...
1
vote
1answer
270 views

Recording and charting boot process information in Linux

I need to write a command line tool that records the boot process information in Linux, and then renders it in a chart format (a textual chart would do). How do I programmatically obtain the this boot ...
1
vote
4answers
143 views

Linux compability file system

I need to develop a file system for Linux for my diploma work. Where can I find infomation about this theme? How can I test it and other?
6
votes
1answer
547 views

Emacs and windows manager keyboard shortcuts without “Super” key

I found a classic M-series keyboard and I want to use it. However, it does not have the "Windows" key (a.k.a "Super"), only the Shift, Control and Alt modifiers. My keyboard shortcuts are cluttered ...
4
votes
2answers
576 views

How does file descriptor re-assigment work?

In a way this question is a extension of another question. In bash you can do pretty neat stuff with file descriptors. Like { command > /dev/null } 2>&1 | grep filter; to grep on stderr ...
1
vote
3answers
190 views

back-up database in Linux partition from windows partition!

Hello I am in a very embarrassing situation, I was trying to upgrade to ubuntu 10.04 from ubuntu 9.10 yesterday and while updating I forgot to put my laptop on charger and the battery ran out. Since ...
3
votes
2answers
4k views

making ssh hosts global to all the users on the computer

So SSH has these files that configure settings for a specific user. ~/.ssh/authorized_keys ~/.ssh/config ~/.ssh/id_rsa ~/.ssh/id_rsa.pub ~/.ssh/known_hosts I'd like to globalise some of these ...
5
votes
5answers
534 views

Would it be possible to jump between prev/next command prompts?

I'm using zsh in OS X Terminal.app and for quite a while, I've been longing for a way to jump back and forth between prev/next prompts in the terminal's output. One convenience with this would be to ...
4
votes
2answers
2k views

Why am I getting a syntax error with my Shell arithmetic?

I have a problem with a linux shell script (sh). I'm trying to write a script that calculates combinations, but I think I get overflows when trying to calculate faculties. So, I'm trying another ...
1
vote
0answers
143 views

How can I list only the directories present in a directory using ls? [duplicate]

Possible Duplicate: Is there any option with 'ls' command that I see only the directories? I have a directory with a lot of files but only a few directories. To get a list of only ...
2
votes
0answers
318 views

How can I check which shell I am currently using? [duplicate]

Possible Duplicate: How to test what shell I am using in a terminal? An echo $SHELL will only display the value of the SHELL variable which would indicate the default shell on the system. ...
3
votes
2answers
1k views

What does file version mean: lsattr -v

lsattr -v gives me the "version number" of given file(s). What does this mean? On Redhat 7.3, I could've sworn all the version numbers were 1 except those I changed with chattr -v. On Fedora 11, ...
6
votes
2answers
1k views

Will the system make sure that mdadm is sync-ed before completing a reboot?

This is a follow up to my crazy mdadm problem. I'm trying to figure out what might have caused sda to get out of sync in the first place. The only thing I can think of is that I had just run a bunch ...
3
votes
1answer
2k views

what does the “a” in chattr +ia do?

what does the a in chattr +ia <filename> do? and why would you add the a in combination with the i? note: I know the i is for immutable
9
votes
1answer
1k views

How do I view the IO priority of a process?

How can I view the IO priority of a process? like to see for example if something has been ionice-ed.
2
votes
2answers
2k views

Arch Linux fails to boot from a USB key (cannot mount selected partition)

I tried to install Arch Linux to an USB key. Things are kind of wobbly (it assumes the system has exactly one drive inside, for example) but everything installed just fine. Until I rebooted. ...
4
votes
1answer
1k views

Fullscreen game messes with my xrandr dual-monitor setup

I have Gentoo Linux, the Awesome window manager and an open-source ATI driver. Here's my xorg.conf: Section "Files" #ModulePath "/usr/lib64/xorg/modules" FontPath ...
3
votes
1answer
1k views

installing grub 2 on mdadm, which device?

when installing grub(2) to mdadm devices are you supposed to install it to /dev/sdX or /dev/mdX?
4
votes
2answers
800 views

Mount windows Users directory as /home in linux virtual machine

I'm setting up a laptop for a friend and I'm going to put linux on it in a virtual machine and I want to make it as seamless as possible. I've mounted the \Users\Username directory in a VM before and ...
3
votes
2answers
1k views

Run daemon on startup in Fedora 13 after wireless interface is up

I want to have radvd (the IPv6 router advertisement daemon) run on startup on Fedora 13. However, the network interface that it will use must be up, otherwise the daemon won't start. If I run the ...
6
votes
1answer
3k views

Why don't Page U/Down, Home/End work in less on Solaris over ssh from Ubuntu?

I need to work on a Solaris server over ssh from my Ubuntu (Lucid) laptop. I got Home/End Insert/Delete Page Up/Down working in csh and bash using bindkey and ~/.inputrc, respectively. But I can't ...
4
votes
2answers
646 views

upgrade xdebug without using apt?

I'm running debian 5.0.6 and have installed xdebug 2.0.3 via aptitude. Now I want to install PHPUnit, and when trying to do it through pear, I get the error that PHPUnit wants a more recent xdebug ...
0
votes
1answer
514 views

Make failing while trying to install SoX (spectrogram - libpng)

I'm trying to install SoX, and get through configure fine, but it fails on make with the following: /bin/sh ../libtool --silent --tag=CC --silent --mode=compile gcc -DHAVE_CONFIG_H -I. ...
6
votes
2answers
4k views

root user denied access to .gvfs in rsnapshot?

I was running rsnapshot as root and I got the following error. Why would this happen? what is .gvfs? rsnapshot weekly slave-iv ...
2
votes
2answers
1k views

DSL connection not working in Ubuntu 10.04

I use a wired PPPoE connection to connect to the Internet. What I need to do on Windows to connect to it is put in static IP address, gateway, subnet mask and DNS servers for my LAN card. Next I have ...
7
votes
2answers
147 views

Are RPMs valid across platforms?

I'm a little confused about RPM's in Red Hat and/or Fedora (and/or other distros?). I can certainly accept that 64-bit RPM's are needed for 64-bit OS'es and 32-bit for 32-bit OS'es but... If I have ...
3
votes
4answers
2k views

Applying a regex to stdin

In programing we often see the use of Regular Expressions. One of the most common forms is: newText = text.replace( /regex/, 'replacementString' ) If stdin is text and stdout is newText, what ...
30
votes
8answers
11k views

List explicitly installed packages

In Gentoo there is the file /var/lib/portage/world that contains packages that I explicitly installed. By explicit I mean, packages that I choose, not including anything installed by default, or ...
18
votes
7answers
16k views

Using xargs with input from a file

Say I have a file with the following bob john sue Now these directly corrospond to (in this case) URL pattern such as http://example.com/persons/bob.tar, john.tar, sue.tar. I would like to take ...

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