GNU is a 'nix operating system developed by the GNU project. GNU is normally used with the Linux kernel.

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Is there a way to set up a warning before executing some commands in the terminal?

There are some terminal commands that are proficient at destroying large swaths of data very efficiently. Like: sudo rm -rf /* or rm -rf /*. I want to set up a warning that will show up, whenever ...
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16 views

Debian GNU/Hurd on Virtual Machine not working

I am trying to install Debian GNU/Hurd on Virtual Machine on Windows, I tried different .iso, created images, installed step by step however each time I start it stops at this part: start extfs2: ...
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19 views

GNU Units currency update

GNU Units has a script to update the currency values, units_cur, which is supposed to download currency conversion values. Unfortunately, it tries to download it from ...
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13 views

Synthesizing progress function with tar script

I use this tar script to backup my files: #!/bin/bash cd /mnt/backupdisk tar -cvpzf "$(date +%m%d%Y).tar.gz" --exclude="~/Documents/Excluded" --exclude-caches-all /home I want to add a progress ...
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1answer
25 views

Awk eqivalent to grep -C <num>

I want to print 5 lines of context around each line that matches "foo" but not "foobar". I can do the match easily enough via <output> | awk '/foo/ && !/foobar/' but I can't figure out ...
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1answer
773 views

Kali linux 2.0 wlan0

I executed the following command not knowing that it would disable the wireless option from my settings. iw wlan0 del Is there any way to reverse the command? Any help would be really appreciated. ...
2
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1answer
20 views

Why does the behaviour of find(1) differ when explicitly adding -print?

The man page for find(1) says: If the expression contains no actions other than -prune, -print is performed on all files for which the expression is true. However, there seems to be a ...
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1answer
47 views

How can I make this SED command more portable?

I'm using the following sed command: cat version | sed -e 's/[0-9][0-9][0-9][0-9][0-9:M]*-[abp]/Ver\n/' Which normalizes like this: 4330M-p -> Ver<newline> This works fine with GNU ...
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1answer
26 views

plotutils: `graph` creates empty plots

I'm trying to create simple plots using graph as described in this tutorial. However, even the most basic example: echo 0 0 1 1 2 0 | graph -T png > plot.png produces a perfectly white 570x570 ...
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1answer
59 views

Should Complete OS X and iOS Source be Available via GPL? [closed]

I have been familiarizing myself with the GNU General Public License (GPL), and the way I understand the license is that any piece of software that includes open-source software licensed under GPL ...
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1answer
70 views

In what order does GNU env print environment variables?

When invoked without arguments, the env and printenv commands from the GNU Coreutils print the value of every environment variable. What determines the order in which these variables are printed? ...
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1answer
1k views

Windows 10 virtual machine disappears in seamless mode in Arch Linux

I have Arch Linux (64-bit) and I installed 32-bit Windows 10 in VirtualBox. Everything seems to work fine—fullscreen, scaled, etc…—except for seamless mode. When I activate seamless mode, the virtual ...
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1answer
28 views

SED/AWK/PERL(GNU userland) - how to substitute pattern A but not pattern B?

First, I am using GNU userland so you can assume I use Bash, GNU coreutils... I have a HTML and I want to change all href="foobarz" into href="" However, I don't want to change any line ...
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1answer
252 views

R not reading Rprofile.site at startup

When I start R it’s meant to read from /etc/Rprofile.site first thing. I’ve verified that this isn’t happening but have no idea why or how to fix it. When I source('/etc/Rprofile.site') at startup ...
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2answers
237 views

gnu screen not to change my window titles

I set meaningful names to new windows I create in gnu screen, but then when I 'cd' or open vim that name gets changed to 'pwd' for instance. Is there a way to prevent screen from changing the title? I ...
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1answer
79 views

How do I set $LESS invocation options in a lesskey file?

I'm trying to use less's lesskey-file support, as described in the manpage: KEY BINDINGS You may define your own less commands by using the program lesskey (1) to create a lesskey file. This ...
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1answer
24 views

GNU/Linux: fast switching between keyboard layouts

on x server environments i just open a terminal emulator (pressing + typing in x-terminal-emulator and pressing return on most graphical environments/window managers) and tping in setxkbmap us and ...
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1answer
290 views

Replacing string in a script using sed

I am new in using sed command and I have an sql which contains "MONYY" and I want to change the "MONYY" in the file by replacing it with the current "MONYY" automatically. I have used the following ...
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33 views

Octal Dump is taking too long, and is only using 6% of cpu

I am trying to do an Octal Dump on a large binary file (roughly 50 GB) and it is taking much longer then it should. We are running this on a $7000 4-processor Thinkmate with 4 Core-Intel Xeons and 1 ...
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1answer
457 views

Is GNU Hurd using the same principles as Minix 3 for self healing?

Minix3 has a reincarnation server that can restart drivers if they crash or end up in a infinitive loop. It can even restart the disk driver by keeping a shadow copy of the same or an older version of ...
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2answers
48 views

find: show directories which contain certain subdirectories

I have a list of directories /u2/tip/coy/inter/fcs/ /u2/tip/coy/inter/fcs/devel /u2/tip/coy/inter/fcs/ecom_flink /u2/tip/coy/inter/fcs/totalstable /u2/tip/coy/inter/fcs/develbi ...
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3answers
109 views

Can less wrap lines like fmt does?

Like most people I use less as my terminal pager. Occasionally I view files consisting of very long lines of plain or marked-up text. By default less folds these lines at the terminal window edge. ...
3
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1answer
299 views

Unix mail command: Sort by newest first

When I use the "mail" command, it prints a list of messages in my inbox in a format like this: 1 Super User Mon Jun 9 17:13 86/4716 Complete Registration With Stack Exchange However I've ...
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1answer
229 views

How to install Debian GNU/Linux without Removing Windows or Formating

I want to install debian on my computer, and I already have Windows on it. Is there any way i can install Debian on a partition without removing what's in it or formatting? I can't get past the setup, ...
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2answers
572 views

How to list only ordinary files on UNIX

I'd like to list only ordinary files (not directories or symlinks) using ls from GNU tools. So far I have only some hackish greps. Is there an option or better way of doing that? Edit: I need more ...
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226 views

Slow hotkey response in GNOME 3.12

I run Arch, and I recently grabbed the 3.12 upgrade for GNOME. I've had F12 bound to terminator for a while, since I often have to summon new terminals. Ever since the upgrade, using a hotkey for a ...
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1answer
101 views

What exactly does Cygwin do?

I understand that it "looks like" Linux by giving me forward slashes and providing a directory structure similar to Linux. I also know that a lot of apps have been ported to Cygwin, but if the source ...
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1answer
58 views

xargs process string as multiple arguments

Linux GNU xargs I have the file doit with arg1 arg2 arg3 arg4 arg1 arg2 arg3 arg4 I want to perform command arg1 arg2 arg3 arg4 command arg2 arg2 arg3 arg4 What I can't figure out is how to ...
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2answers
396 views

How to figure out what device (if any) my DVD drive is assigned to in Debian GNU/Linux

I am running stock Debian Jessie and I would like to burn a DVD with xfburn. Problem is that xfburn can't see my DVD drive. e.g. it does not show up under as /dev/scd0 or any other (as far as I can ...
3
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1answer
252 views

Installing GNU mailutils on windows

I'm using Windows 7, and would like to use the GNU mailutils, specifically mu and mu4e. Unfortunately, these are not available as Cygwin packages. Is there any way to use GNU mailutils on windows ...
0
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1answer
115 views

Linux on SUA. Any active projects?

I would like to know whether besides the following attempt http://www.debian-interix.net/ to port the entire set of tools which come with the most popular Linux systems to Windows systems with SUA ...
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1answer
552 views

Windows 7 Ultimate versus Cygwin: POSIX compliance and is it practical to install a GNU system directly on Win 7 Ultimate without Cygwin

What are the advantages or disadvantages of using GNU/Linux utilities on Windows 7 via Cygwin as opposed to making use of Windows 7 Ultimate SUA (Subsystem for UNIX-based applications) support ...
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1answer
70 views

Move numbers in a filename to the start

I have several files in a folder, with names in the form: SOMETEXT1 number SOMETEXT2.mp3, or SOMETEXT number.mp3. I want to rename these to number SOMETEXT SOMETEXT2.mp3, or number SOMETEXT.mp3. Using ...
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3answers
304 views

Permanently set `find` regextype

GNU find allows the use of different regex formats via the -regextype option, but as far as I can tell I have to type out -regextype <whatever> every single time which is onerous. If one wants ...
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2answers
472 views

Copy file names to another folder

I need to copy file names from one folder to another. File contents are never changed. No files are overwritten, moved or copied. It's only about file names. I have a folder A with files named: ...
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1answer
87 views

Does a successful exit of rsync -acvvv s d guarantee identical directory trees?

I have two volumes, one xfs, and another ntfs - ntfs was empty, and xfs had 10 subitems. I needed to sync them. I initially copied a few of the subitems by dragging them over in a gui fm. Several of ...
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2answers
1k views

How to install GNU gettext on windows 7?

I need to install version 0.15 or higher of GNU's gettext. I've downloaded : http://ftp.gnu.org/pub/gnu/gettext/gettext-0.18.3.1.tar.gz from https://www.gnu.org/software/gettext/ However I ...
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1answer
174 views

Create user with partial root permissions

Is there any way to create a user with partial root permissions on a GNU/Linux system? For example: A user who can use the useradd and userdel tools, but nothing else besides regular user ...
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3answers
997 views

linux tar -T - does not work on the fly

I found some problem with linux gnu tar. wheh I use option -T - (for file list from stdin) or -T named_pipe_file , this desn't work on the fly. for example, simple interactive script: while ...
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3answers
710 views

What should I make my computer do while I'm away from keyboard? [duplicate]

During the day, usually I'm away from my computer for 3-5 hours. I also sleep 6+ hours every night. I run Arch Linux x64 on my computer. Besides the usual things that do not require user ...
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4answers
640 views

Does 64bit GNU/Linux have better performance?

I had 32bit Ubuntu (with Xfce) and now I switch to 64bit Xubuntu and I'm not sure but I think that 32bit had better performace, but just a feeling. I want to know which one 32 or 64 will give better ...
7
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3answers
3k views

GNU screen: change focus in split windows with mouse

Is there a way to enable proper mouse support in GNU screen so that I can switch the focus between split windows using my mouse? In other words, I'm looking for a mouse-driven alternative to typing ...
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2answers
618 views

How can I iterate through possible completions in gnu readline?

In a shell that implements GNU Readline, I can click the key to get a list of possible completions to what I started typing. For example: C:\>cd P<TAB> PerfLogs\ Program Files ...
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1answer
985 views

Using Thunderbird, how can one attach from command line a file containing commas (,) in its name?

thunderbird -compose "attachment='$HOME/test test.txt'" works. thunderbird -compose "attachment='$HOME/test, test.txt'" does not work and gives a file does not exist error message. This must be ...
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2answers
223 views

Why is sort.exe truncating large output on 32-bit Windows?

We have a data file from a client which is 1,443,777,659 bytes in size. Sorted output has lines missing and is only 1,269,801,985 bytes in size. Sample command: sort -k 1,10 -T . -s -i ...
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3answers
3k views

Why does the output of some Linux programs go to neither STDOUT nor STDERR?

Why does the output of some Linux programs go to neither STDOUT nor STDERR? Actually, I want to know how to reliably capture all program output, no matter what 'stream' it uses. The problem I have is ...
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1answer
47 views

Viewing the ASCII codes of piped-in characters

Is there a command that would let me see ASCII values of characters outputted from a program? Say I pipe in a NUL character and a p, could I get a 0 and a 112 out?
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1answer
64 views

What does GNU tar “--restrict” option actually restrict?

The manual of GNU tar only states that --restrict: --restrict disable use of some potentially harmful options Can anyone elaborate on what are these "harmful" options? I could not ...
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5answers
14k views

How to get the actual directory size (out of du)?

How do I get the actual directory size, using UNIX/Linux standard tools? Alternative question: How do I get du to show me the actual directory size (not disk usage)? Since people seem to have ...
2
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1answer
160 views

In Debian GNU/HURD, how to switch back to text terminal after I start X?

I've been running Debian GNU/Linux for several years. Recently I gave Hurd a try by running Debian GNU/Hurd on a physical machine. It works fine, and I can get X running without problem. The problem ...