All Questions
217,636
questions
1
vote
1
answer
13
views
rsync: mkstemp failed: Protocol error (71)
I ran into this issue with an rsync script after I changed the destination from a local directory to a CIFS mount. All of the files in the source directory will throw this mkstemp protocol error and ...
- 121
0
votes
0
answers
10
views
btusb.ko file missing...Getting "Module not found error" [duplicate]
I have the issue of not being able to use my USB Bluetooth adapter(It is a CSR 4.0) on my Ubuntu OS 20.04.4 LTS with GNOME version 3.36.8... Normally this USB stick works perfectly on my Windows but ...
-1
votes
0
answers
32
views
How to copy text from vim to the terminal?
I want to copy from vim into my clipboard.
I tried to follow the answers of this question:
How to copy text from vim to an external program?
Inside Visual mode after having selected what I wanted to ...
- 295
0
votes
1
answer
29
views
Cannot append user to group
I'm having trouble adding a user to a group:
# useradd -aG group user
# useradd -a -G group user
# useradd -G group user --append
It tells me that the -a option is an invalid or unrecognized.
Can ...
- 780
-2
votes
0
answers
15
views
How would you create an HTML code for an (RSS Feed Like) text box that [closed]
How would you create an HTML code for an (RSS Feed Like) text box that automatically creates next box in ascending order?
It is Something Similar to TT-RSS
Example:
BOX3 (newest): HELLO TEXT 3 (DATE ...
- 1
0
votes
2
answers
128
views
I'm trying to run a Debian 11 VM on my CentOS 7 Home Server, but get hit by this issue with virt-install
See below, the issue im having when trying to run virt-install on its own. Same issue when I try with all the config I plan to use:
/usr/lib/python2.7/site-packages/requests/__init__.py:104: ...
0
votes
2
answers
30
views
How to wget all Betacoronavirus .tar.gz files from BLAST database directory?
I'm trying to use wget to download all Betacoronavirus files ending in .tar.gz from https://ftp.ncbi.nlm.nih.gov/blast/db/. I can use wget and paste in the link to a single one of those files, and it ...
- 103
0
votes
0
answers
13
views
split column in R data.frame [migrated]
the data.frame is like:
|col_1|
|------|
|A |
|B |
|B |
|A |
|A |
The expected output should be:
|col_A |col_B |
|---------|-------|
|A |NA |
|NA |B |
|A |NA |
|NA |B |
|...
- 11
0
votes
2
answers
83
views
Finding values of one file within range of another file and selecting the top value
I have two files A and B. File-A has 4 columns and 600,000 rows. File-B has 4 columns and 5000 rows. Example:
File-A:
ENSB1 1 12245 0.53 0.002
ENSB2 1 13400 0.27 0.0003
ENSB3 1 14780 0.13 0.00001
...
-1
votes
3
answers
88
views
Appending a character to field records based on a repeated value from the second field
I have this input
array='2 0.00000 -1.45191
6 0.81778 -0.63413
10 0.85020 -0.60170
8 1.40260 -0.04931
22 3.25781 1.80590
20 4....
- 13
0
votes
3
answers
32
views
debian 8: My machine started to only use IPv6 for *outgoing* connections. How to go back to IPv4?
I'm running debian 8 on my server. Recently, the server starting only using IPv6 for all outgoing TCP connections. It still accepts IPv4 for incoming connections, however.
Because of this, I can't ...
- 271
0
votes
1
answer
42
views
Error while upgrading from Fedora 35 to Fedora 36: VirtualBox requires libvpx.so.6()(64bit), but none of the providers can be installed
While upgrading my system from Fedora 35 to Fedora 36,
I first ran
sudo dnf upgrade --refresh
And then,
sudo dnf system-upgrade download --releasever=36
But it is giving rise to this error:
Before ...
- 157
1
vote
0
answers
10
views
How to run a child process inside firejail sandbox?
Hello Linux folks i need help running with firejail with a java program that is in sandbox
firejail --private --trace java -jar program.jar
But this program can't spawn child process (chromium) due to ...
- 11
0
votes
2
answers
40
views
Get values from pipe delimited file to the normal text file in Linux
I have a pipe delimited file
Lookup.txt:
Column1|yellow|value|628291
Column9|red|value|346801
File.txt:
Yellow
YellowDiamond
Redgold
I am trying to get the value of Yellow present In File.txt to the ...
- 103
0
votes
0
answers
30
views
Securing Rsync Daemon Over SSH with NON-root user
Unfortunately, due to hosting provider, I am unable to access the rsync daemon as root and secure it accordingly. Instead, in order to take regular remote backups from the server, I have to access ...
- 123
0
votes
1
answer
10
views
What's the difference between kmap and page_address in x64 system?
kmap() allows you to map a page to some address that functions in kernel or modules can access. While page_address() also allows you to retrieve the address to access the page.
It says that kmap() is ...
- 3
0
votes
0
answers
24
views
No sound output on Arch linux after suspend or some time of inactivity
Lately, I have encountered some issues with my Built-in audio device. I cannot play any sound for some reason after waking up from the suspended state or after some time of inactivity (I mean no apps ...
0
votes
1
answer
25
views
unable to print a positional parameter in a script
I'm using this method to open a Gnome terminal window and run command(s) — in this case, to send me simple notification messages (will be scheduled via at):
#!/bin/sh
gnome-terminal -- /bin/sh -c '...
- 244
0
votes
1
answer
13
views
Joining hosts to freeIPA without changing hostname
I've been asked to join linux hosts in my company to freeIPA. But the problem is that I'm not allowed to change hostnames. So I should leave hosts NetBios names intact.
I am wondering if there is any ...
- 1
0
votes
0
answers
9
views
Settings won't launch (PopOS)
I am currently running Pop!_OS 21.10 on my Raspberry Pi 400 (4GB RAM model) and upon trying to change the wallpaper today, (right click on desktop> change background) but it just shows a loading ...
- 1
0
votes
1
answer
19
views
Auto detect network interface card, network init.d
I have build my LFS linux that based in this book, it's working fine and network interface card is working. Even it's configuring IP automatically with using dhcpcd service.
According chapter 9 in ...
0
votes
0
answers
17
views
How to choose the best low latency stack? [closed]
The use case is very simple:
the program read data from a websocket conn
the program process data
the program send data to the websocket conn
The goal here is: since the time spent between 2 and 3 ...
0
votes
1
answer
32
views
rpm database lost, how to proceed?
I completely lost the rpm directory under /var/lib with no way to recover it. (I know what I should have done...) I have made a new one (rpm --initdb) but of course rpm and yum no longer know what's ...
0
votes
1
answer
31
views
How to install gcc and build-essential on debian 11?
In the /etc/apt/sources.list, the allowed sources are
deb http://deb.debian.org/debian buster main contrib non-free
deb http://deb.debian.org/debian-security/ buster/updates main contrib non-free
deb ...
- 135
0
votes
1
answer
28
views
Why k3s is still seeing swap on Debian Bullseye?
I've installed k3s on Debian Bullseye (on M1 Pro through qemu/UTM).
k3s recommend to disable the swap. After reading the answers of the following questions:
How to safely turn off swap permanently ...
- 3,951
0
votes
0
answers
7
views
Reposync default temp-cache location
I'm trying to change the temp-cache directory (can do it using the flag "-t"), but I want to know what is the default location of this temp directory. How can I know that?
Thanks!
0
votes
1
answer
58
views
IP Subnetting /16 into 5 equal parts [closed]
I having a hard time understanding IP subnetting for /16 mask. I went through some tutorials and understood the host part and non-vlsm but with vlsm and dividing into equal parts, is something I am ...
- 101
3
votes
2
answers
352
views
tr command unable to process colour output piped from grep
I'm running macOS 12.3.1
I added a couple of lines to my .zshrc, viz.
export GREP_OPTIONS='--color=always'
export GREP_COLOR='1;35;40'
After this, when I pipe grep output to tr, it returns the same ...
- 53
1
vote
0
answers
20
views
dovecot: Force TCP socket disconnect on imap login failure?
I'm running dovecot 2.2.13 under Debian 8.
I'd like to force an immediate TCP socket disconnect after any imap login attempt that fails.
Right now, if invalid credentials are supplied during an imap ...
- 271
0
votes
2
answers
36
views
Root password change method
I have try change root password and non of article mentions this command to change root password sudo passwd
But how does that change root password with your you specifically stating root user
1
vote
1
answer
68
views
How to avoid hardware damage with dd
I wanted to create an encrypted USB-stick. In the tutorial I used it said something like 'to avoid pattern based attacks dump random input to the drive'. So I did by dding /dev/urandom to the drive. ...
- 54
0
votes
3
answers
84
views
How to replace a field by a shell variable being another field?
Consider the following code:
renamed_column='2
6
10
8
22
20
6-
18
8-
12
16'
array1='2 0.00000 -1.45191
6 0.81778 -0.63413
10 0.85020 -0.60170
8 1.40260 -0.04931
22 3.25781 1.80590
20 4.32051 2.86860
...
- 13
-1
votes
2
answers
57
views
awk no print if value from file1 not match value in file2
file1:
G A 4
H B 3
I C 2
J D 1
file2:
M H 6
N H 5
O K 4
P J 3
Q I 2
R I 1
S G 0
T L 1
Desired:
M H 6
N H 5
P J 3
Q I 2
R I 1
S G 0
print only rows where $2 from file2 matches $1 from file1
I'm ...
- 1,631
1
vote
0
answers
35
views
Why isn't a systemd user session started by `su`?
When I use ssh to log in to the root user on my server, an entry 0 is created in /var/run/user because pam_systemd tells systemd-logind to do this. This is an indicator that a user session has been ...
- 147
0
votes
0
answers
10
views
command not in docroot (suexec)
I'm setting up a server but when I'm trying to config suexec it's returning this error:
[2022-05-21 17:10:53]: uid: (1004/scripts) gid: (1008/scripts) cmd: register.cgi
[2022-05-21 17:10:53]: command ...
- 48
0
votes
1
answer
24
views
I installed wget into my local directory because the system-wide wget was out-of-date. How do I use my updated wget instead of system-wide?
I have a directory on a computer (used by my entire department) that has out-of-date wget software (wget-1.14). I installed a new version into my local directory, where I have write permissions (I'm ...
- 3
0
votes
2
answers
29
views
How to open several local (HTML) documents in lynx?
I was planning to use lynx for reading all local HTML files in a folder:
lynx ~/Documents/webpages/*
I don't know how to move beyond the first document. Quitting with qq exits the program and returns ...
- 244
1
vote
1
answer
22
views
What's required to let a domain send outbound emails from multiple domains?
Let's say I have:
40 outbound emails to send
main domain - main_domain.com
4 separate domains-workers with Postfix - mail.my_postfix1.com...mail.my_postfix4.com
Goal: send 10 emails via each of 4 ...
- 13
3
votes
3
answers
128
views
Every row of a file is converted to a new file
I have a file that contains four columns and 5000 rows. I want to make 5000 new files from this file so that each file has one row from the original file. Also, I want to name the new files according ...
2
votes
1
answer
42
views
In tcsh, how can I keep '{' '}' in assigning a variable?
I am making a simple shell script using the tcsh shell.
I assigned a variable as a command to use later.
But brackets within single quotes disappear.
set aaa = "test '10' '{}' ' " ; echo $...
- 23
1
vote
1
answer
20
views
systemd-networkd match for LAN
I want static LAN IP addresses for my devices (an ethernet and wifi ) but in my usual week I connect to two LANs: two gateways, two IP ranges: a 10.0... network and a 192.168.. network.
I have been ...
- 1,400
1
vote
0
answers
36
views
How to switch from Grub to rEFInd without breaking everything
Okay so a little backstory:
I've been trying to install Linux as a dual boot (with Windows) since yesterday, here's how it went down :
installed Debian, worked well but I had to boot in nomodeset for ...
- 23
1
vote
2
answers
35
views
Set up a shortcut to open terminal in a specific directory
As far as I know, when you hit Ctrl+Alt+T, the Linux terminal pops up. However, it opens in the default home directory. I want to set up this shortcut to open in the directory I am currently in at my ...
- 77
1
vote
0
answers
19
views
Split pdf document based on section
(This may be a XY problem, more on the context at the end)
Is there any way of programmatically splitting a pdf based on the section titles? That is
from this pdf, produce 2 pdfs, where one contains ...
- 366
0
votes
0
answers
22
views
Why does glibc redefine structs already defined by the linux kernel?
The kernel defines struct statfs in statfs.h.
glibc could simply include this file. Instead it redefines this struct under bits/statfs.h.
I suppose glibc redefines many other things already defined by ...
- 321
0
votes
1
answer
40
views
How to jump to the file and line of the grep -nr output?
Let's say I run
grep -nr . -e "This text was found"
And get in the CLI:
./subfolder/file.ext:10 This text was found
i.e. it's the 10th line in the file "file.ext" in the folder &...
- 145
1
vote
0
answers
25
views
Rework sed for vim's errorformat for circom compiler
compiling ciruits and intend to use quickfix. but the compiler output was not in standard format ... so tried parsing
Need help
fixing the sed command
preping the output for error format so that i ...
- 31
1
vote
1
answer
27
views
What should be the equivalent apport package for CentOS 8
In Ubuntu Linux we can use apport service to get system crash report automatically. Generally following commands are used to manage apport.
sudo systemctl enable apport.service
sudo systemctl start ...
1
vote
0
answers
36
views
Linux freezing after few minutes of using
Good day!
Trying to install linux on new SSD but everytime, no matter what i do, even in LiveCD linux freezes and i have to restart PC from button.
Tried to install PopOS, Fedora and Debian. Also used ...
1
vote
0
answers
16
views
How can I see which is my boot partition in latest suse 12 and 15 OS's?
In SLES 12 S, SLES15 it is observed that the OS can be installed and booted without creating a separate /boot partition. My question is how can we know which is my boot partition as I can't be able to ...