All Questions

I'm copying a video from a camera stream using a command cat /dev/video0 > file.mpeg This works perfectly, however I want too break up the file into smaller chunks... So I've been waiting pressing ...

When I establish LAMP environments on Deiban I install: php-{cli,curl,mbstring,mcrypt,gd} From the above, besides php-gd, all packages are missing in Arch. What are their substitutes, if at all? ...

Converted to a ubuntu server and after newly installed a second dish, I'm trying to export all tuners of my SF4008 (1x DVBT2/c - 2xDVBS2 Si21662) with the help of minisatip. My tuner configuration in ...

I am trying to add additional keys to .secondary_trusted_keys. Documentation says, to do so the additional keys has to be signed by a key which is already a resident in either .builtin_trusted_keys or ...

There are two Arch packages I consider to use; both of Mail Transfer Agents (MTAs): msmtp and opensmtpd. Both might be good for me as a substitute for the now deprecated in Arch ssmtp. Yet, I don't ...

I am using youtube-dl to download ogg audio files with their respective thumbnail, but I am not sure how to embed the thumbnail into the audio file.

Service is still active: systemctl -l status foo.service ● foo.service - My Foo service Loaded: loaded (/etc/systemd/system/foo.service; static; vendor preset: disabled) Active: activating (...

I need suitable parameters for very, very long screen captures using ffmpeg. Quality: Only occasionally needed. If text is readable, that's enough usually. I can use -qscale:v *[0-32]*, of which ...

I consider establishing an Arch based LAMP. From reading this document, it seems there is must configuration to be done just for Apache itself, not to mention MySQL and PHP. In Debian LAMP there ...

I have the following file.txt that follows the same pattern and I want to modify it where this file is by adding an ip: # gfhfhgfh gfhfghgfhgfhgfh MACs # access USER CONSOLA *,!10.249.247.3,!10.249....

In Debian I use ssmtp to manage SMTP content but it's no longer available for Arch. I considered postfix but it seems to me an overkill to my simple needs (simple WordPress/Drupal/MediaWiki contact ...

my idea is to collect logs each 24 hours ,mail it and flush them after that i wrote some scatch for example 1.var/log/auth {some info} 2.var/log/something.log {some info} list="$(find /var/log -...

I'm using the following command to get the most recent file in a directory /usr/bin/find /home/user1/folder1/ -type f -printf '%T@ %p\n' | sort -n | tail -1 | cut -f2- -d" " | cut -f5 -d"/" This ...

It's a fresh install of Arch Linux with alsa installed and the sound is choppy ( this happens every 3-5 sec while playing music, over Youtube or over an Audio player ). It's onboard Realtek ALC887 on ...

I had raspbian running on my pi for some times. From yesterday, when booting i can read this on the screen : "end kernel panic - not syncing: VFS: Unable to mount root fs on unkown-block(179,2)" I ...

To enable UFW in Debian I do: ufw --force enable I understand from the Arch documentation that do so in Arch I should do instead: systemctl start ufw systemctl enable ufw By "enabling" I mean "...

During boot the kernel is loaded into memory and also in-memory filesystems like /proc or /sys are created. How can you change values in those filesystems? Or how could you change the dmesg output, ...

I have sometimes wired outputs in nethogs stats: ? root 192.168.1.100:42608-81.21.119.76:18725 or ? root unknown TCP there is always 192.168.1.100 (my PC address in network) and then "...

When I try to format my C code using GNU Indent, it doesn't seem to deal with multiple levels of nested indentation. Specifically, it seems to collapse the second level of indentation. For example, ...

I'd like to speed up my wifi connection. I'm using elementary OS Juno, Kernel 4.15.0-43-generic and a Broadcom BCM4321 [14e4:4328] (rev 01). The wifi connection works, but with 3-10 Mbps (download) it ...

I'm running Ubuntu 18.04. After installing the requirements and downloading the package, I cannot install rstudio. Downloads $ sudo gdebi -n rstudio-xenial-1.1.419-amd64.deb Reading package lists... ...

This is a followup question to: Why does `... | sed 's/^/stdout: /'` print on empty stdin when `... > >(sed 's/^/stdout: /')` doesn't? To be more concrete, why is this a ...

Now my lock screen makes me enter a password. But what if I want to make a custom lock screen like username and password. Is it possible?

I want to start screen session from gnome. I wrote the following desktop file [Desktop Entry] Version=1.0 Name=Screen Comment=Use the command line Keywords=shell;prompt;command;commandline;cmd; ...

I'm trying to run a sudo command in a non admin account. So far I tried with su, but it requires a password after. When I do echo PASS | su ADMIN it says 'Sorry'. Is it possible to run a command too ...

I've got Fedora 28 installed as the only OS on an HP laptop: i7 770HQ 16GB RAM 128GB SSD 1TB HDD Nvidia GTX 1050 I installed Bumblebee according to the fedora tutorial (https://docs.fedoraproject....

I am having trouble using the mmc read command on U-boot 2017.09 beagle bone black. => mmc dev 1 switch to partitions #0, OK mmc1(part 0) is current device => mmc info Device: OMAP SD/MMC ...

When creating a new swap partition in Fedora 29 to enlarge it I removed the old one using GParted and removed their respective entries in /etc/fstab. I created new entries for the new swap partitions ...

OS: CentOS 7 This is a question that is bordering on two issues. I have a docker machine running where I recently installed the PLEX container from linuxserver/plex. The current problem is that I ...

I have two text files. One file has startdatetime and second file have enddatetime. file 1 data(startdate-time): 2019-01-08 04:14:59 2019-01-08 04:16:57 file 2 data(enddate-time): 2019-01-08 04:15:...

I am trying to get Redshift to work again. And it seems to fail because of geoclue2. Here's the weird thing. Until earlier today, it worked just fine, and geoclue was not updated since December (2.5....

How it is supposed to look. How it looks. I can see in mpv's log that it does call for Murga, the right font embedded in the mkv file, but it ends up falling back to BitstreamVeraSans-Roman. [sub/...

Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors ...

I have two instances of RHEL 7 Linux, machine 1 and machine 2. Machine 2 has a folder that is mounted to a remote folder from machine 1. It is done with command: mount -t cifs -o user=aaa,pass=...

I'm trying to understand what causes the difference in these 2 constructs that I thought were functionally equivalent: $ ( echo foo >&2 ) 2> >(sed 's/^/stderr: /') | sed 's/^/stdout: /' ...

When I set up arch linux, I created a partition with fdisk, and ran mkfs.ext4 on /dev/sda. Now, I want to partition /dev/sda to have 2 partitions, instead of just one. The problem is, that when I try ...

I'm working on a server (CentOS 7) that will be connected to a serial device service. I also have 6 client machines. The SDS makes the devices show as actual devices in linux and can be controlled by ...

When I turn on the bluetooth with the gnome GUI nothing happens. The button becomes blue but if I leave and come back the button is normal again. I tried a bunch of stuff in the cli that I copied ...

The Redhat kickstart documentation describes how to deselect/exclude packages in the packages section - i.e. one may put - in front of a package name to exclude it. But it doesn't fully work in this ...

Recently, we made a clone of a RHEL VM for testing purposes. One of the steps to make the clone unique was to give it a different IP address than the original machine (Of course). But the method used ...

I'm using lightweight VM lkvm which creates tun interfaces on the host. Now I want to connect two instances of lkvm over bridge interface, similar to what other VMs do: VM1 ...

I have written a script that takes commands from user and runs through a huge list of servers and writes to a single file. Once writing has completed it triggers an email. My requirement is: the ...

At my office whenever I log into a linux server I get a standard message which basically amounts to "You consent to us monitoring you if you use this machine". This has been required part of every ...

After updating to RHEL7 from RHEL6 my Konsole fonts are looking ugly and un-antialiased(Monospace size 11 in both systems). I played around with font antialiasing system settings but I am unable to ...

I have been following this tutorial to install ELK stack in a remote server which runs on Amazon Linux. https://www.aytech.ca/blog/setup-elk-stack-amazon-linux/ I was able to install Elasticsearch and ...

I am using Arch Linux and when I am compiling and running the following C code, #include <stdio.h> #include<string.h> int main(void) { char s1[]="Hello"; char s2[]="World"; ...

I know that charging battery near 100% is bad. However, a charging threshold can be set by using tp_smapi or tlp. Unfortunately, this package is only for Thinkpad. How can I set this for a non-...

I use mutt 1.10.1 on Ubuntu 16.04 and have this line in my .mailcap because before importing work calendar events to my personal Gmail calendar, I want to anonymize all the attendees email addresses: ...

I want to out some of the nodes for maintenance but I have a confusion if I run "qstop @server" will it affect the running jobs ??? My focus to stop only queued jobs those are waiting for free ...

I have a file 1.txt with 10 rows. I want to pass each row sequentially to sed and save the output in a log. job=`tail -1 1.txt` getdd=`grep $job "mainlog.log"| sed -n '1p' $i > /tmp/result.log