2
votes
1answer
20 views

login 'authentication failure' by non-root user, can login only by root [on hold]

In my CentOS 6.0 system, working since months, suddenly stop authenticating non-root users, in graphical mode. I have checked necessary /etc/pam.d/* files, but those are unchanged. SELinux is ...
1
vote
0answers
12 views

Expand cracklib-check's dictionary

I've started using cracklib-check to ensure users' passwords are suitably strong, rather than relying on my own algorithms. However, since my project is Pokémon-themed, I get a lot of passwords like ...
5
votes
0answers
60 views

CRON Permission Denied

I have a Debian 7. 3 Server with WebMin installed. I configured a cron job to run every minute as root user, so I run the command crontab -l when I'm logged in as root it shows: * * * * * ...
1
vote
1answer
13 views

How do I get the menu bar to reappear

This sound like a really simple thing, but it has me stumped. I was using Thunar file manager on my Xfce desktop and I wanted to try it without the menu bar at the top (the one with File, Edit, View ...
1
vote
1answer
23 views

Error compiling drivers for Ralink RT2870

Im trying to install drivers for a rosewill RNX-N600UBE wireless card (Ralink RT2870 chipset) on Kali Linux. I downloaded the drivers form their website and unpacked/unzipped them, but now when i try ...
2
votes
1answer
16 views

Postfix Relay Multiple Domains with Multiple Origins

I currently have Postfix relaying multiple hosted customer solutions which all works as expected. There are no local accounts and it is used solely as a relay server. In the config I have the ...
1
vote
0answers
35 views

Cannot login on GUI

I'm using Debian Jessie with Xfce and cannot login into the GUI as a normal user, root works. I can login on another terminal. I tried to reinstall lightdm, but I still cannot login. After a login ...
1
vote
0answers
21 views

how to resolve yum replace php-common --replace-with=php55w-common error? [on hold]

How to resolve yum replace php-common --replace-with=php55w-common error on CentOS 6.5? root@server [~]# yum replace php-common --replace-with=php55w-common Loaded plugins: fastestmirror, replace, ...
0
votes
1answer
22 views

Creating operating system (OS) user in Oracle LINUX

I am a user with sudo access. To install MySQL, I have to create an operating system (OS) user called MySQL. Can I create a user which also has sudo access on this machine?
6
votes
2answers
981 views

what will ¬ do in bash?

While wanting to start gitg as backgrounded through writing gitg & I accidentally typed gitg ¬. This did not cause an error, instead I got with a later command in the same terminal (translated): ...
1
vote
0answers
11 views

how to disable flareget from firefox?

Hello I want to disable flareget from mozilla firefox. Whenever I click on some download button flareget starts downloading the file. But I want to download by the browser downloader.
4
votes
4answers
190 views

How to exclude some files not matching certain extensions with grep?

I want to output all lines containing the word OK recursively from a directory. But there are a few extensions which I need to exclude from the result: *~ *.map *.js except *.debug.js I tried: ...
3
votes
1answer
28 views

Switch between keyboard layout based on input event

I have a french and a US keyboard on my computer. I'm using awesome wm and have set everything so that it is easy for me to switch between keyboard layout. But I still have to do it myself. ...
0
votes
1answer
16 views

What is the encryption function in Encfs?

I'm a newbie at Encfs. After I read a paper about Encfs, I figured out there is a Encryption layer in Encfs. So I tried to find exact encryption function. but I couldn't find that because there are ...
0
votes
2answers
18 views

GPIO User Space App

GPIO User Space App describes user space application to test the GPIO. Another related link is Linux GPIO Driver. This would be running on a xilinx zynq board having an ARM Cortex A 9 processor. I ...
0
votes
1answer
9 views

How to install oald8 in linuxmint 16?

Hello I tried to install oald8 in linux mint 16 petra 64 bits using the following command ~/Desktop/Oxford/linux $ linux32 sh ./setup.sh. during the installation I got these error massages at the ...
-2
votes
1answer
54 views

Need to run su command If I am a user with sudo access

I am a user in Oracle Linux server with sudo access. If I run su command, system prompts for password. When I input my account password, system gives message Incorrect password while I login ...
4
votes
0answers
12 views

Why mutt keeps asking for imap username and password?

Unsetting mutt's configuration variables imap_user, imap_pass (and perhaps preconnect, imap_authenticators as well) via an account-hook . "unset ... " call, seems to be common practice, if not a ...
5
votes
2answers
100 views

What's the difference between 'expansion' and 'substitution' in terms of shell programming's terminology?

Expansion and Substitution seems to be interchangeble at same context in shell programming language. For example, some documents such as Bash reference manual, Bash Hackers Wiki use the word ...
2
votes
2answers
16 views

Capture transcript of program with redirected input and output

A typical interaction for a program I've written might look like this: Enter command: a_command Completed a command Enter command: another_command Completed another command I typically run my ...
0
votes
1answer
14 views

Installing multiple versions of MySQL on Oracle Linux

I have a Oracle Linux 5 server. I have to install MySQL 5.1 as well as MySQL 5.6. Is it possible to install both version of MySQL on the same machine? If yes, how can I achieve this?
0
votes
0answers
13 views

usb / virtual com port - is it dead?

I have video gimbal that I am attempting to setup. The device, a Basecam 3 Axis unit, has a micro USB port interface. When I plug a USB cable from my Debian laptop to the gimbal and run "lsusb" I ...
1
vote
1answer
24 views

TAR Backup to Remote Server [duplicate]

I'm wanting to do an incremental backup from my Linux computer to server. I've made the ssh link and I can at least get RSYNC to load the files incrementally, which I plan to do daily using ...
0
votes
0answers
23 views

Laptop shutting off randomly

My laptop randomly shuts off occasionally when using Linux Mint 16 Cinnamon (64 bit) It's not overheating because it has shut off when I am just watching a video, but it has also shut off when trying ...
1
vote
2answers
22 views

Difference between vim’s normal-mode S and cc commands?

Is there a difference between the vim normal-mode commands S and cc? In my use cases, both commands seem to delete the current line and move into insertion mode.
3
votes
1answer
37 views

Where does ext4 store directory sizes?

Where does ext4 store directory sizes? Are they stored in the directory inode? For example, when I run du -h, it returns directories' size instantly, so I don't believe it calculates it at that time. ...
1
vote
0answers
9 views

tmux color theme in emacs gtk

When I use emacs -nw I always use it in tmux 256-color mode. tmux applies its default color theme to emacs so it looks like this: For some reason I like that color theme far better than any other ...
4
votes
1answer
39 views

Does pipe's link target exist somewhere in the filesystem?

I'm talking about this: $ readlink <(echo test) pipe:[80076194] Is pipe:[80076194] a path to the target or just indication that the file descriptor is connected to the pipe and doesn't exist in ...
5
votes
1answer
43 views

What are the side effects of having several UNIX users share one UID?

The sys-apps/shadow package on my GNU / Linux system comes with a useradd command that supports an option that I have previously overlooked: --non-unique. For the sake of convenience when shellig home ...
2
votes
1answer
28 views

Is it possible for du to report significantly more disk in use than the mount point has available?

I ran into an interesting situation the other day. I have a 1TB NFS filesystem mounted on /backup. df reported approx 1TB total size, as expected. However, running du -csh . in the /backup/.snapshot ...
1
vote
1answer
15 views

Tails OS - Modifying boot options

When Tails OS boots, you can press tab to modify the startup options. Is there any way I can save an iso with these options already set? It's a real pain to have to press tab and set them up every ...
1
vote
3answers
70 views

Seemingly Inconsistent Behavior for “ln” & “ln -s”

As we all know, the ln command creates a link, with the default being a hard link and the -s option creating a symlink. The general syntax is ln [-s] OLD NEW, where OLD is the file you are linking to ...
0
votes
1answer
37 views

Is LXLE more resource-intensive than Lubuntu?

I'm using Lubuntu on an Acer Aspire One. It works well, and I'm happy with it. Recently, however, I came across the Lubuntu-derived LXLE distribution and it looks interesting. But I'm wondering ...
0
votes
3answers
25 views

Shell vi mode prints (arg: repetition): How to remove it?

Whenever you are in vi command mode on the shell and hit a number, like 8, "(arg: 8)" shows at the start of the line. Anyone know how to make it not do that? The moving the line I'm typing is ...
1
vote
3answers
8 views

how to pipe the output of cut to the foreach command?

I have the cut command I want that grabs the first word in each line of a file. I then want to put each word from the cut command into a foreach. I then want to do a grep command inside the body of ...
5
votes
1answer
19 views

gdm greeter configuration: Exclude all *except* for one specific user

I have Googled this one and tried so many combinations, with no success. I need the GDM login greeter to display one and only one username. In effect, what I need is something like this in ...
2
votes
1answer
9 views

office 2007 under wine: available for all user accounts?

I have succesfully installed office 2007 using Wine under 1 account on my parents computer (which now runs on linux mint 13 LTS XFCE). I installed it under 1 account and normally, when you do this in ...
1
vote
0answers
32 views

Ubuntu hangs on boot [on hold]

After installation mount manger software, upon restarting ubuntu won't boot up . It hangs on boot splash screen and doesn't move further. I have duel boot running in this computer so, I can boot and ...
5
votes
2answers
153 views

How process substitution is implemented in bash?

I was researching the other question, when I realized I don't understand what's happening under the hood, what are those /dev/fd/* files and how come child processes can open them.
7
votes
2answers
34 views

SSH session through OpenVPN cuts off / locks up after a few lines

I have a large number of identical fanless PCs running debian 6 (ARM). Most of these are connected via comcast and work ok. There are some that are connected to 'WiMax' modems and are having ...
0
votes
1answer
23 views

removing the last line of a file not working? [duplicate]

I have this TXT file that is created by a bash script and at the end I want to remove the last line of that file that is an empty one. head --lines=-1 r3.txt > r4.txt sed '$d' r3.txt > r4.txt ...
2
votes
1answer
30 views

rsyslog not logging

This is an odd issue. I was testing the chrony/ntp services on a RHEL7 VM and was resetting its time as well as the host's. Once I was satisfied with it I checked /var/log/messages and realized it ...
3
votes
2answers
63 views
+250

WMI-based hotkeys on not working

On my Dell latitude e6540, the WMI hotkeys Fn+UP and Fn+DOWN are not working. I have all necesary modules compiled in my kernel: CONFIG_DELL_LAPTOP=m CONFIG_DELL_WMI=m CONFIG_DELL_WMI_AIO=m On the ...
1
vote
2answers
62 views

UNIX ACL disadvantages [on hold]

I have read a lot about how great UNIX ACLs are. For example, one good example can be viewed here. However, are there any disadvantages or configurations that cannot be expressed using ACL?
2
votes
2answers
103 views

Are system calls the only way to interact with the Linux kernel from user land?

Are there any other interfaces, e.g. the /proc filesystem?
2
votes
1answer
39 views

Display file using Dialog

I have a file on disk which contains some text I want to display on the screen. You can do it like this: dialog --yesno "`cat FILE`" 10 100 However, I'm concerned that if FILE becomes large, I'm ...
4
votes
2answers
35 views

How to check whether a command such as curl completed without error?

I am using curl to upload a file to a server via an HTTP post. curl -X POST -d@myfile.txt server-URL When I manually execute this command on the command line, I get a response from the server like ...
0
votes
0answers
19 views

cupsenable,reject commands asking for password for root? [on hold]

I am a root user still cupsenable or reject commands ask for password.Restarting cups solves the issue for a sec but after few seconds i get the error again. This issue is happening just now and i ...
-1
votes
0answers
19 views

Rearranging text file with blocks of data [duplicate]

I have a file whose content looks like this: 2009 150 0 0 0 0000 75.316 0.0400390625 0.00007 0.00000 0.8980 76.216 0.0400390625 0.00007 1.00000 0.9046 77.217 ...
3
votes
4answers
137 views

Rearrange text file by prepending data rows with header row

I have a file whose content looks like this: 2009 150 0 0 0 0000 75.316 0.0400390625 0.00007 0.00000 0.8980 76.216 0.0400390625 0.00007 1.00000 0.9046 77.217 0.0400390625 ...

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