| How to make my Program Display Always on top Posted: 01 Feb 2022 01:03 AM PST Program Info & Problem I have created a Python Program Using Pygame Module which displays the Ads on the monitor. It shows The Ad on screen But as soon as I launch different applications like kodi or vlc or chrome, etc. It goes behind those applications. The Problem is: The program runs but behind those applications if these applications are launched after my Ad Program. Ideal Working - Program Laucnhed
- Ad Displayed on screen
- Launched Other Application
- The Program still displayes the ad on top of screen.
System Info OS: Linux - Ubuntu 20 Language: Python Module: Pygame, Pymovie, GTK3+ Architecture: amd64 Desktop Environment: OpenBOX Code Launch: CLI using a bash script which launches the python program of advertisement. Sample Screenshot of Advertisement 
Please Help! Thank you. |
| I want to replace \ with \\\\ using sed Posted: 01 Feb 2022 12:46 AM PST **Hi, I have tried using sed to read . Unable to read \ and replace it with \\ I want to replace single \ with 4 \\
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| Which parameters does configuration.nix take? Posted: 01 Feb 2022 12:23 AM PST My /etc/nixos/configuration.nix starts with { config, lib, modulesPath, pkgs, ... }:, because that's what was in whichever example I copied. A quick search through the NixOS manual, man nixos-generate-config, and man configuration.nix shows only examples with an even simpler { config, pkgs, ... }:. Removing the , ... and running nixos-rebuild switch doesn't help; it prints the following three times: error: anonymous function at /etc/nixos/configuration.nix:1:1 called with unexpected argument 'specialArgs', at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:372:8 How do I figure out its arguments? |
| can /etc/skel directory's files and directories automatically copied over to a existing user’s like with the newly created ones? Posted: 01 Feb 2022 12:20 AM PST The /etc/skel directory contains files and directories that are automatically copied over to a new user's when it is created from useradd command. But , when checked with the old existing users , it do not contains all the files and directories (.ssh directory in my case) as it should have inside /etc/skel. - I have uncommented SKEL=/etc/skel in /etc/default/useradd.
- placed .ssh directory inside /etc/skel But the .ssh directory is not showing when logged in from existing users , where it works fine with the newly created users.
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| I have to print the consolidated value of p1,p2,p6,p8 , can someone help Posted: 31 Jan 2022 11:33 PM PST <r p="1">0.0</r> <r p="2">0.0</r> <r p="3">0.0</r> <r p="4">1.06</r> <r p="5">0.0</r> <r p="6">0.0</r> <r p="7">3.0</r> <r p="8">0.0</r> <r p="9">0.0</r> <r p="10">0.0</r> <r p="11">0.0</r> <r p="12">0.0</r> <r p="13">38810.3359375</r> <r p="14">0.0</r> <r p="15">0.0</r> <r p="16">294.0</r> <r p="17">0.0</r> <r p="18">86.24</r> <r p="19">0.0</r> <r p="20">4.43</r> <r p="21">0.0</r> <r p="22">5091.99609375</r> <r p="23">0.0</r> <r p="24">0.0</r> <r p="25">0.0</r> <r p="26">0.0</r> <r p="27">0.0</r> <r p="28">0.0</r> <r p="29">9.23</r> <r p="30">24.9609375</r> <r p="31">0.0</r> <r p="32">0.0</r> <r p="33">38712.0</r> <r p="34">0.0</r>
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| lvremove is not removing previous LV'S filesystem signature. Is it safe to remove it while using lvcreate? Posted: 31 Jan 2022 11:41 PM PST I removed a logical volume that was formatted with ext4 with no data in it. I then proceeded to create a swap LVM but it's giving me a warning that there is an ext4 signature present. I am assuming that lvremove command doesn't remove the fs signature. Is it safe to remove the signature when prompted using lvcreate? [root@workstation ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert home cl -wi-ao---- <6.52g root cl -wi-ao---- 19.00g swap cl -wi-ao---- 2.00g lv01 vg01 -wi-a----- 404.00m lv02 vg01 -wi-a----- 100.00m [root@workstation ~]# lvremove /dev/vg01/lv02 Do you really want to remove active logical volume vg01/lv02? [y/n]: y Logical volume "lv02" successfully removed. [root@workstation ~]# [root@workstation ~]# [root@workstation ~]# lvcreate -n swap1 -L 100M vg01 WARNING: ext4 signature detected on /dev/vg01/swap1 at offset 1080. Wipe it? [y/n]:
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| Question marks showing in ls of directory even with root Posted: 01 Feb 2022 12:57 AM PST If I do ls -alt in any folder i get the following. Even with the files or folders i create with root. Commands such as stat filename returns Operation not permitted. Any idea what causes this? [root@011319292d9c ~]# pwd /root [root@011319292d9c ~]# ls -alt ls: cannot access '.': Operation not permitted ls: cannot access '..': Operation not permitted ls: cannot access '.bash_profile': Operation not permitted ls: cannot access '.tcshrc': Operation not permitted ls: cannot access '.bashrc': Operation not permitted ls: cannot access '.bash_logout': Operation not permitted ls: cannot access 'test-file-i-created-as-root': Operation not permitted total 0 d????????? ? ? ? ? ? . d????????? ? ? ? ? ? .. -????????? ? ? ? ? ? .bash_logout -????????? ? ? ? ? ? .bash_profile -????????? ? ? ? ? ? .bashrc -????????? ? ? ? ? ? .cshrc -????????? ? ? ? ? ? .tcshrc -????????? ? ? ? ? ? test-file-i-created-as-root
P.S. This happened inside a docker container which I started it with bash from docker image with redhat 8.5 as follows for debugging purposes: docker run --rm -ti --entrypoint /bin/bash <Image-ID>
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| Prevent LibreOffice from using system theme Posted: 31 Jan 2022 10:23 PM PST I recently started using Linux Mint 19.3 Cinnamon. I understand that LibreOffice automatically uses the system colour theme---my preferred system theme is dark so LibreOffice uses it as well. However, I want LibreOffice to use the light theme while keeping my system dark. I have tried searching online extensively, and attempted several of the suggested solutions, such as editing the .desktop file to include env GTK_THEME (such as this post), but none of them have worked for me. Linux being so customisable, surely this shouldn't be so hard? None of the similar questions asked ever really reached a definitive solution, so is this not even possible? Expectation (light Libre + dark system): 
flatpak Some also suggest using the flatpak variant of LibreOffice, as it does not use the system GTK and instead comes with Adwaita-light by default, but I tried this and it didn't work either. It automatically changes with the system theme. Moreover, although the flatpak version allows me to use a "preinstalled theme" (it comes with six), this is not quite the same as when Libre runs with the light system theme. Some bars remain dark, while the region that gets changed loses some refinement. Overall, it just looks bad (I have used grey in the example below, just because white is even worse and so is not what I want). 
I would think lots of people face this issue, but can't find an easy solution! |
| During any upgrade, and even upgrading my Linux major version, should I reply: "replace configuration files" or "keep them" when I'm asked for? Posted: 31 Jan 2022 10:19 PM PST I'm about to upgrade from Debian 10 to 11.
During this step, and like when I do common apt-get upgrade or dist-upgrade, I'm expecting to receive a lot of questions: "Do you want to replace or to keep your configurations files?" And having little knowledge (or absolutely no, sometimes) about the goals and the effects of most packages that are asking for this, a diff won't help me. What is the default response you recommend to answer, when you "know nothing"? Y : replace configurations file
or
N : keep them
or
press Enter key, to use the default answer suggested? |
| Unable to install anything on kali Linux 2019.1 Posted: 31 Jan 2022 08:59 PM PST This is my /etc/apt/sources.list contain deb http://http.kali.org/kali kali-rolling main contrib non-free deb-src http://http.kali.org/kali kali-rolling main contrib non-free
yet I am unable to update it or download anything. I have Linux 2019.1. As it is old version but I need it for my work. How to fix this issue? |
| Is there a cleaner way to get active vim+tmux window renaming? Posted: 31 Jan 2022 08:22 PM PST I have finally achieved what I wanted with my vim+tmux setup, but I'm curious if there is a better way to do this. I also hope that this helps out anyone looking for this sort of functionality. In short, the window tab titles now actively rename themselves to " file_name " and " basepath/ ", i.e. on opening panes and windows, opening files in vim, changing directories, and changing pane focus. I took care of renaming inside vim with: .vimrc if exists('$TMUX') autocmd BufEnter,FocusGained,BufWrite * call system("tmux rename-window ' " . expand("%:t") . " '") endif
According to :help filename-modifiers I should have been able to add: "autocmd VimLeave * call system("tmux rename-window ' " . expand("%:h") . "/ '")
But it just returned a period followed by my slash. Here's where I had to get scrappy. I took care of exiting vim and directory changes in my: .bash_aliases tmux ls > /dev/null 2>&1 TMUX_STATUS=$? if [ $TMUX_STATUS -eq 0 ]; then # Get pwd, trim to "basepath/" and rename window basepathTitle () { getval=$(pwd) BASEPATH_TITLE="${getval##*/}" tmux rename-window " ${BASEPATH_TITLE:0:12}/ " } # Change cd functionality to rename window title to pwd after every directory change cd () { builtin cd "$@" CD_STATUS=$? basepathTitle return "$CD_STATUS" } # Change vim functionality to change title back to basepath on close vim () { FILE_NAME=$@ #tmux rename-window " ${FILE_NAME:0:12} " /usr/bin/vim.gtk3 "$FILE_NAME" VIM_STATUS=$? basepathTitle return "$VIM_STATUS" } # Set window title when tmux starts basepathTitle fi
That just left the issue of renaming the window every time I switched pane focus, including from vim to shell. I finally found this option in the tmux man pages: .tmux.conf set -g focus-events on set-hook -g pane-focus-in 'rename-window " #{b:pane_current_path}/ "'
The b reduces the current path to the head directory or basepath. I hope this helps someone, and again I'd love to know if there is a cleaner way to do this. Comments about using automatic-rename with status-interval are unwelcome ;) |
| Set firefox developer edition as the default browser in VS Code on Linux Posted: 31 Jan 2022 08:04 PM PST I have installed firefox developer edition on my MX-Linux. When I tried to configure the live server of VS Code to run it as default, I failed. I followed this link to set up, but ultimately it is not working for me. What I did after following the above mentioned link is to include this piece of line in the settings.json file after I entered config live server in the search bar "liveServer.settings.AdvanceCustomBrowserCmdLine": "/usr/share/applications/firefox-developer.desktop". However, it is not working out for me. Did I miss anything out here? I know I could add a comment on that thread, but I don't have enough reputations on stackoverflow to comment anything. So I had to post here. I hope anyone can help me with this. Thanks in advance. |
| Should I worry if 'pkexec' is in a cPanel user's /home/virtfs (CVE-2021-4034)? Posted: 01 Feb 2022 12:02 AM PST The recent security bug CVE-2021-4034 in Linux involves /usr/bin/pkexec. Following media reports (zdnet, etc.) I changed its permission, but also found this file: /home/virtfs/foo/usr/bin/pkexec for cPanel user foo. I don't know why a user would have pkexec shadowed. Unfortunately we are running an outdated WHM/cPanel (with root) on outdated CentOS 6, until we can migrate the last sites off it. |
| How to get the email of the logged in user when login occurs through SSH keys? Posted: 01 Feb 2022 12:17 AM PST I'm using bash shell and Ubuntu 18.04. I SSH into the server using a fairly standard RSA public-private key set up, where I put my public key in the .ssh/authorized_keys file of the server, entry looking like this ssh-rsa AAAAB…KKRaniLSv8mHQ== first.last@example.com
Is it possible, after login, to write a script or command that would tell me the email of my logged in account? In the above case, I would want the script to output first.last@example.com. Edit: I don't have sudo privileges for the logged in user in question. |
| Docker 20.10.x keeps system waiting for several minutes before shutdown or reboot Posted: 31 Jan 2022 10:03 PM PST I have successfully upgraded my Debian buster to latest version (Bullseye) and after that, whenever I want to reboot or shut it down, it takes several minutes to complete while waiting for some process to finish with these messages: watchdog: watchdog0: watchdog did not stop! systemd-shutdown[1]: Syncing filesystem and block devices. systemd-shutdown[1]: Sending SIGTERM to remaining process... systemd-journald[372]: Received SIGTERM from PID 1 (systemd-shutdown). systemd-shutdown[1]: waiting for process: containerd-shim.
I've got docker installed on my system which seems to be the cause of problem. $ ps aux | grep containerd-shim root 3420 0.0 0.1 1451744 21876 ? Sl 11:07 0:00 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 0dd6b89a62d...66cc5c0a44b6f01d77c -address /run/containerd/containerd.sock $ dpkg -S /usr/bin/containerd-shim-runc-v2 containerd: /usr/bin/containerd-shim-runc-v2 $ aptitude why containerd i docker.io Depends containerd
I've tried stopping dockers' service/socket before rebooting the system. Nothing changed. Any idea how to resolve this?
$ docker version Client: Version: 20.10.5+dfsg1 API version: 1.41 Go version: go1.15.9 Git commit: 55c4c88 Built: Wed Aug 4 19:55:57 2021 OS/Arch: linux/amd64 Context: default Experimental: true Server: Engine: Version: 20.10.5+dfsg1 API version: 1.41 (minimum version 1.12) Go version: go1.15.9 Git commit: 363e9a8 Built: Wed Aug 4 19:55:57 2021 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.4.5~ds1 GitCommit: 1.4.5~ds1-2 runc: Version: 1.0.0~rc93+ds1 GitCommit: 1.0.0~rc93+ds1-5+b2 docker-init: Version: 0.19.0 GitCommit:
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| Dual Boot Windows 10 / Linux Mint 19.3 on Dell XPS 13 (7390) Posted: 31 Jan 2022 09:30 PM PST As I'm new to dual boot Linux with Windows I'm probably missing a lot during this process and I'll be glad if someone can help me sort things out. I got a new Dell XPS 13 (7390). It came with Windows 10 Home installed, which I need to maintain for work reasons, but I'd like to have Linux Mint as my primary OS. I followed Dell's instructions to install Linux by shrinking the Windows' partition and then using that creating 4 new partitions in it: /boot; /root; /home; /swap. Please do tell me if you need to know more about my machine to understand what's happening. At first I had problems in make my USB flash drive recognize the unallocated space, which I finally solved as explained here (but without setting boot mode to legacy (as it is no longer possible). Now I have the two systems installed. The only problem is that I can boot Windows only selecting "Raid On" on BIOS settings, while Mint works only switching it back to AHCI mode. Is there a way to solve this and not touch the BIOS every time? |
| Alpine 3.9.4 update busybox 1.30.0 Posted: 01 Feb 2022 01:14 AM PST I am using latest stable version of alpine 3.9.4 image. this image comes with busybox -1.29.3-r10. I need to upgrade to busybox 1.30.0. apk upgrade busybox command not upgrading the package. What is the right steps to upgrade busybox package in Alpine Linux?
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| Problem due to incorrect libstdc++6 Posted: 31 Jan 2022 09:02 PM PST When I do sudo apt-get -f install I am getting Preparing to unpack .../libstdc++6_8.1.0-5ubuntu1~14.04_amd64.deb ... Unpacking libstdc++6:amd64 (8.1.0-5ubuntu1~14.04) over (5.4.0-6ubuntu1~16.04.10) ... dpkg: error processing archive /var/cache/apt/archives/libstdc++6_8.1.0-5ubuntu1~14.04_amd64.deb (--unpack): trying to overwrite shared '/usr/share/doc/libstdc++6', which is different from other instances of package libstdc++6:amd64 Processing triggers for libc-bin (2.23-0ubuntu11) ... Errors were encountered while processing: /var/cache/apt/archives/libstdc++6_8.1.0-5ubuntu1~14.04_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1)}
I'm using Ubuntu 14.04.5 This is probably because of a conflict with libstdc++. (it happened when I was trying to install adobe acrobat) How/where do I find the right version of libstdc++6 and how to uninstall the broken version? The output of apt-cache policy libstdc++6:i386 is libstdc++6:i386: Installed: 8.1.0-5ubuntu1~14.04 Candidate: 8.1.0-5ubuntu1~14.04 Version table: *** 8.1.0-5ubuntu1~14.04 500 500 http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu trusty/main i386 Packages 100 /var/lib/dpkg/status 5.4.0-6ubuntu1~16.04.11 8500 500 http://mirror.****/ubuntu xenial-updates/main i386 Packages 5.4.0-6ubuntu1~16.04.10 500 500 http://mirror.****/ubuntu xenial-security/main i386 Packages 5.3.1-14ubuntu2 500 500 http://mirror.****/ubuntu xenial/main i386 Packages
(I have snipped the full IP address when I wrote **** above) $ dpkg --print-foreign-architectures is i386
Output of dpkg -l libstdc++6 is | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-====================-===============-===============-============================================== iU libstdc++6:amd64 5.4.0-6ubuntu1~ amd64 GNU Standard C++ Library v3 iF libstdc++6:i386 8.1.0-5ubuntu1~ i386 GNU Standard C++ Library v3
Output of grep -v "#" /etc/apt/sources.list: deb http://mirror**/ubuntu/ xenial main restricted deb-src http://mirror**/ubuntu/ xenial main restricted
and so on so forth.
Will the problem get solved if I manually edit this file and change xenial to trusty (running apt-get-clean did not help fix this) When I run sudo apt-get install --reinstall libstdc++6:i386, I get: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: libstdc++-5-dev : Depends: libstdc++6 (>= 5.5.0-12ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.10 is to be installed libstdc++6 : Depends: gcc-5-base (= 5.4.0-6ubuntu1~16.04.10) but 5.5.0-12ubuntu1~14.04 is to be installed Breaks: libreoffice-core (<= 1:4.4.4~rc3-0ubuntu1) but 1:4.2.8-0ubuntu5.1 is to be installed Breaks: libstdc++6:i386 (!= 5.4.0-6ubuntu1~16.04.10) but 8.1.0-5ubuntu1~14.04 is to be installed libstdc++6:i386 : Breaks: libstdc++6 (!= 8.1.0-5ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.10 is to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
and I cannot run apt-get -f install for the same reason as mentioned at the beginning of the thread. Let me know what can be done. |
| fix debian libc-bin Posted: 31 Jan 2022 10:07 PM PST Apparently I broke my Debian system again. If I want to install anything using apt I get the following warning: Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: libc-bin : Depends: libc6 (< 2.25) but 2.27-3 is to be installed locales : Depends: libc-bin (> 2.27) but 2.24-11+deb9u3 is to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
Following this hint is no use, as it only results in The following packages were automatically installed and are no longer required: bc cups-browsed cups-core-drivers cups-daemon cups-filters cups-filters-core-drivers cups-ppdc cups-server-common dc foomatic-db-compressed-ppds foomatic-db-engine hp-ppd hplip-data libart-2.0-2 libavahi-glib1 libcupscgi1 libcupsmime1 libcupsppdc1 libfontembed1 libgutenprint2 libhpmud0 liblouisutdml-bin liblouisutdml-data liblouisutdml7 libqpdf17 libsane-hpaio libsnmp-base libsnmp30 mscompress openprinting-ppds printer-driver-all printer-driver-brlaser printer-driver-c2050 printer-driver-c2esp printer-driver-cjet printer-driver-dymo printer-driver-escpr printer-driver-foo2zjs printer-driver-foo2zjs-common printer-driver-fujixerox printer-driver-hpijs printer-driver-m2300w printer-driver-min12xxw printer-driver-pnm2ppa printer-driver-ptouch printer-driver-pxljr printer-driver-sag-gdi python3-pexpect python3-pil python3-ptyprocess python3-renderpm python3-reportlab python3-reportlab-accel qpdf ssl-cert Use 'sudo apt autoremove' to remove them. The following packages will be REMOVED: cups hplip libc-bin locales printer-driver-gutenprint printer-driver-hpcups printer-driver-postscript-hp printer-driver-splix task-english task-print-server WARNING: The following essential packages will be removed. This should NOT be done unless you know exactly what you are doing! libc-bin 0 upgraded, 0 newly installed, 10 to remove and 7 not upgraded. 1 not fully installed or removed. After this operation, 22.0 MB disk space will be freed. You are about to do something potentially harmful. To continue type in the phrase 'Yes, do as I say!' ?]
A quick Google search informed me that removing libc-bin is a terrible idea, which and idiot like me should never do. The question is now, how can I fix my problem?
Further info: $ cat /etc/apt/sources.list # deb cdrom:[Debian GNU/Linux 9.4.0 _Stretch_ - Official amd64 NETINST 20180310-11:21]/ stretch main # deb cdrom:[Debian GNU/Linux 9.4.0 _Stretch_ - Official amd64 NETINST 20180310-11:21]/ stretch main deb http://ftp.de.debian.org/debian/ stretch main non-free contrib deb-src http://ftp.de.debian.org/debian/ stretch main non-free contrib deb http://security.debian.org/debian-security stretch/updates main contrib non-free deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free # stretch-updates, previously known as 'volatile' deb http://ftp.de.debian.org/debian/ stretch-updates main contrib non-free deb-src http://ftp.de.debian.org/debian/ stretch-updates main contrib non-free
Requested by comments: $ sudo apt install libc-bin/stable
Reading package lists... Done Building dependency tree Reading state information... Done libc-bin is already the newest version (2.24-11+deb9u3). Selected version '2.24-11+deb9u3' (Debian:9.4/stable [amd64]) for 'libc-bin' Selected version '2.24-11+deb9u3' (Debian:9.4/stable [amd64]) for 'libc6' because of 'libc-bin' You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: libc-bin : Depends: libc6 (< 2.25) but 2.27-3 is to be installed locales : Depends: libc-bin (> 2.27) but 2.24-11+deb9u3 is to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
$ cat /etc/apt/sources.list.d/*
# deb-src http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu cosmic main # deb-src http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu cosmic main
$ apt-cache policy
Package files: 100 /var/lib/dpkg/status release a=now 500 http://ftp.de.debian.org/debian stretch-updates/main amd64 Packages release o=Debian,a=stable-updates,n=stretch-updates,l=Debian,c=main,b=amd64 origin ftp.de.debian.org 500 http://security.debian.org/debian-security stretch/updates/non-free amd64 Packages release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=non-free,b=amd64 origin security.debian.org 500 http://security.debian.org/debian-security stretch/updates/contrib amd64 Packages release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=contrib,b=amd64 origin security.debian.org 500 http://security.debian.org/debian-security stretch/updates/main amd64 Packages release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=main,b=amd64 origin security.debian.org 500 http://ftp.de.debian.org/debian stretch/contrib amd64 Packages release v=9.4,o=Debian,a=stable,n=stretch,l=Debian,c=contrib,b=amd64 origin ftp.de.debian.org 500 http://ftp.de.debian.org/debian stretch/non-free amd64 Packages release v=9.4,o=Debian,a=stable,n=stretch,l=Debian,c=non-free,b=amd64 origin ftp.de.debian.org 500 http://ftp.de.debian.org/debian stretch/main amd64 Packages release v=9.4,o=Debian,a=stable,n=stretch,l=Debian,c=main,b=amd64 origin ftp.de.debian.org Pinned packages:
$dpkg --list libc6
Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-================-=============-=============-===================================== ii libc6:amd64 2.27-3 amd64 GNU C Library: Shared libraries
find /lib -name libc-\*
/lib/x86_64-linux-gnu/libc-2.27.so
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| Combining rsync and find Posted: 01 Feb 2022 01:01 AM PST I'm trying to use find & rsync to back up specific files from a remote machine, and getting nowhere. Here's the setup: I want to use rsync to back up all files containing *state* or *srm on the remote machine into a local directory. I specifically want to run this from my local machine, rather than running it with find on the remote machine (a RetroPie, if you're curious), because I don't want to set up login credentials from the remote machine. I already have ssh keys set up properly. I'm aiming to backup into ~/retropie-backup locally. The find command that I'm using works properly on the remote machine (truncated to one result for clarity): $ find -iname "*state*" -o -iname "*srm" ./RetroPie/roms/snes/EarthBound (USA).srm
So far so good. I also know that I need to add -s to rsync so it doesn't panic over spaces in the file names. My attempt at combining the two, however, doesn't work: $ rsync -v -s pi@retropie:'`find -iname "*state*" -o -iname "*srm"`' retropie-backup/ rsync: link_stat "/home/pi/`find -iname "*state*" -o -iname "*srm"`" failed: No such file or directory (2)
I can tell that I'm missing something basic, but I'm just not seeing it. Any suggestions? |
| How to start a script after login using gdm? Posted: 31 Jan 2022 08:06 PM PST I am using arch linux with xmonad, and I login using gdm, but to make xmonad work properly I have to run a script directly after login (actually I want to run .xinitrc after login using gdm to set some configuration).so, How it is possible ro run a bash script immediatly after login. I tried several ways such as editing /etc/gdm/PostLogin/Default
thank you, |
| How to renice all threads (and children) of one process on Linux? Posted: 01 Feb 2022 01:14 AM PST Linux does not (yet) follow the POSIX.1 standard which says that a renice on a process affects "all system scope threads in the process", because according to the pthreads(7) doc "threads do not share a common nice value". However, sometimes, it can be convenient to renice "everything" related to a given process (one example would be Apache child processes and all their threads). So, - how can I
renice all threads belonging to a given process ? - how can I
renice all child processes belonging to a given process ? I am looking for a fairly easy solution. I know that process groups can sometimes be helpful, however, they do not always match what I want to do: they can include a broader or different set of processes. Using a cgroup managed by systemd might also be helpful, but even if I am interested to hear about it, I mostly looking for a "standard" solution. EDIT: also, man (7) pthreads says "all of the threads in a process are placed in the same thread group; all members of a thread group share the same PID". So, is it even possible to renice something which doesn't have it's own PID? |
| Building python with openssl support Posted: 01 Feb 2022 12:01 AM PST I have the following directory structure: nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$ la 2to3 cpp-5.3.0 gcov-5.3.0 grmid-5.3.0 objcopy-2.25.1 python3.5-config .sources 2to3-3.5 elfedit-2.25.1 gcov-tool-5.3.0 grmiregistry-5.3.0 objdump-2.25.1 python3.5m strings-2.25.1 addr2line-2.25.1 g++-5.3.0 gfortran-5.3.0 gserialver-5.3.0 pydoc python3.5m-config strip-2.25.1 aot-compile-5.3.0 gappletviewer-5.3.0 gij-5.3.0 gtnameserv-5.3.0 pydoc3 python3-config x86_64-unknown-linux-gnu-c++-5.3.0 ar-2.25.1 gc-analyze-5.3.0 gjar-5.3.0 idle pydoc3.5 python-config x86_64-unknown-linux-gnu-g++-5.3.0 .archives gcc-5.3.0 gjarsigner-5.3.0 idle3 python pyvenv x86_64-unknown-linux-gnu-gcc-5.3.0 as-2.25.1 gcc-ar-5.3.0 gjavah-5.3.0 idle3.5 python2 pyvenv-3.5 x86_64-unknown-linux-gnu-gcc-ar-5.3.0 bash gcc-nm-5.3.0 gkeytool-5.3.0 jcf-dump-5.3.0 python2.7 ranlib-2.25.1 x86_64-unknown-linux-gnu-gcc-nm-5.3.0 .binaries gcc-ranlib-5.3.0 gnative2ascii-5.3.0 jv-convert-5.3.0 python2.7-config readelf-2.25.1 x86_64-unknown-linux-gnu-gcc-ranlib-5.3.0 .build gcj-5.3.0 gorbd-5.3.0 ld-2.25.1 python2-config rebuild-gcj-db-5.3.0 x86_64-unknown-linux-gnu-gcj-5.3.0 c++-5.3.0 gcj-dbtool-5.3.0 gprof-2.25.1 ld.bfd-2.25.1 python3 size-2.25.1 x86_64-unknown-linux-gnu-gfortran-5.3.0 c++filt-2.25.1 gcjh-5.3.0 grmic-5.3.0 nm-2.25.1 python3.5 smtpd.py nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$ la .sources/ bash-4.4-beta binutils-2.25.1 boost_1_60_0 gcc-5.3.0 Python-2.7.11 Python-3.5.1 nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$ la .build/ bash-4.4-beta binutils-2.25.1 boost_1_60_0 gcc-5.3.0 Python-2.7.11 Python-3.5.1 nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$ la .binaries/ bash-4.4-beta binutils-2.25.1 boost_1_60_0 gcc-5.3.0 Python-2.7.11 Python-3.5.1 nchambers@nchambers-305E4A-305E5A-305E7A:~/mini-bin$
Generally, tar balls go in .archives, unpacked sources go in .sources, building happens in .build, and the final binaries are store in .binaries. I then symlink the binaries from .binaries to ~/mini-binwhich is on my $PATH.I know its a weird workflow, but it works for me. Anyways, I am looking to rebuild python-2.7.11 (and 3.4.0, but am starting with 2.7.11) from source. It builds fine on my system, but I need it to build with ncurses, readline, ssl, etc support. Do I have to compile these libraries from source? If so, where would I put the libraries? How do I tell python to build with them. Thank you and have a good day! |
| rsync with different user Posted: 01 Feb 2022 01:15 AM PST I'm working with two ubuntu instances on AWS (which I use a pem key to access them). I set up rsync for both instances, and it works if I use the default user which is ubuntu@ipaddress. However if I try to use rsync with another user (I'm typing sudo su - jenkins for example or even typing sudo before the rsync command), then I get the following error. Permission denied (publickey). rsync: connection unexpectedly closed (0 bytes received so far) [Receiver] rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.0]
Steps that I've taken: I've tried creating an ssh key (using ssh-keygen) while logged in as jenkins and added that to the authorized_keys file in both /home/ubuntu/.ssh/authorized_keys (where i'm running the rsync from) and even $JENKINS_HOME/.ssh/authorized_keys (where I tried running rsync from there too). I even tried using the pem key to do the same thing and that didn't work either. Here's what I'm trying to run rsync -avuh --delete -e ssh jenkins@ipaddress:/var/lib/jenkins/* /var/lib/jenkins
And here's with the key file rsync -avuh --delete -e 'ssh -i path/to/key.pem' jenkins@10.96.2.210:/var/lib/jenkins/* /var/lib/jenkins
P.S.: The only reason why I don't want to run it with the ubuntu user is because I get failed: Permission denied (13) on a lot of things (since the files are owned by jenkins). End goal: I'm trying to keep the backup jenkins instance backed up constantly with the primary instance by doing a cronjob: */30 * * * * /usr/bin/rsync -avuh --delete -e ssh root@jenkinsprimary:/var/lib/jenkins/* /var/lib/jenkins
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| Combined `mkdir` and `cd`? [duplicate] Posted: 31 Jan 2022 08:59 PM PST is there any way (what is the easiest way in bash) to combine the following: mkdir foo cd foo
The manpage for mkdir does not describe anything like that, maybe there is a fancy version of mkdir? I know that cd has to be shell builtin, so the same would be true for the fancy mkdir... Aliasing? |
| How to properly and easily configure `xdg-open` without any environment? Posted: 31 Jan 2022 11:14 PM PST I'm using OpenBox window manager without any desktop environment. xdg-open behaves strangely. It opens everything with firefox.
$ xdg-settings --list Known properties: default-web-browser Default web browser
I'm looking for a simple program; something like reading every *.desktop file in /usr/share/applications/ folder and automatically setting xdg settings. |
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