fix void locale notes

basics/ls.md

@@ -0,0 +1,46 @@
+---
+title: "ls"
+tags: [ "basics" ]
+---
+
+Firstly, your `ls` is probably aliased to something.
+
+Check it with:
+
+
+```bash
+alias ls
+```
+If the prompt shows some alias, then start by removing it:
+
+
+```bash
+unalias ls
+```
+
+Now we can begin.
+
+Check the most recently modified file:
+
+
+```bash
+ls -t
+```
+
+Reverse this with `tac` to see the file which has been unmodified the longest:
+
+
+```bash
+ls -t | tac
+```
+Group files by extension:
+
+```bash
+ls -X
+```
+Sort largest files first:
+
+```bash
+ls -X
+```
+

basics/tree.md

@@ -0,0 +1,25 @@
+---
+title: "tree"
+tags: [ "basics" ]
+---
+
+The `tree` utility outputs a full listing of everything in your current directory, and those below.
+
+- Just directories: `tree -d`
+- Output colour to `less`: `tree -C --info | less -re`
+- Ignore files in the `.gitignore` file: `tree --gitignore`
+
+You can place information about the files in a directory to use with the `tree --info` option, like this:
+
+```
+config
+	Config files.
+	This is a git submodule.
+README.md
+	Summary of the git.
+*.jpg
+	Little picture, does not display
+	words well.
+```
+
+Each description-line starts with a tab.

basics/yes.md

@@ -0,0 +1,24 @@
+---
+title: "yes"
+tags: [ "basics" ]
+---
+# The Best Linux Program: `yes`
+
+The program `yes` prints the word `yes` to your terminal until you cancel it, perhaps with 'Control + c'.
+Or technically it prints `yes\n`, meaning `yes` and then a new line (like pressing the Return key).
+
+This is extremely powerful.
+
+If you ever want to automatically install something which persistently nags you with `do you want to do the thing? [y/N]?`, then you can just pipe `yes` into that program, and it will answer 'yes' to all questions.
+
+```bash
+yes | $INSTALL_SCRIPT_FILE.sh
+```
+
+This works best for disposable systems, like VMs or containers.
+Try this on a live system, and you might find out that you should have read that message fully.
+
+```bash
+yes | yay
+```
+

data/calcurse.md

@@ -0,0 +1,9 @@
+---
+title: "calcurse"
+tags: [ "data", "calendar", "daylight savings" ]
+---
+
+## Setup
+
+The UK government keeps an ics file with clock, [here](https://www.gov.uk/when-do-the-clocks-change/united-kingdom.ics).
+

data/email.md

@@ -0,0 +1,73 @@
+---
+title: "e-mail"
+tags: [ "data", "smtp" ]
+---
+
+This is bare-bones, original, primitive e-mail.
+
+Install `opensmtpd` (or similar), then `ncat` or `nc` or `netcat` (this mysterious cat has many names).
+
+Start the `opensmtpd` service, then use netcat to speak with the mail-daemon:
+
+
+```
+nc localhost 25
+```
+The computer should respond with code `220`, which means 'I am listening'.
+
+> 220 hex ESMTP OpenSMTPD
+
+```
+HELO gmail.com
+```
+
+You say `HELO` and say where you are coming from.
+
+
+The `smtpd` will not check, so I am going to lie to it.
+Mail servers are easily impressed, so it will be pleased to meet you.
+
+> 250 hex Hello gmail.com [::1], pleased to meet you
+
+```
+MAIL FROM: <admin@gmail.com>
+```
+
+All the mail commands start with 4 bytes, because it's easier for admins to program.
+Tell the mail daemon who you are in this format.
+
+> 250 2.0.0 Ok
+
+Then tell it who you're sending to.
+
+```
+RCPT TO: <www@dmz.rs>
+```
+
+> 250 2.1.5 Destination address valid: Recipient ok
+
+Finally, tell it that you want to send `DATA`.
+
+```
+DATA
+```
+
+> 354 Enter mail, end with "." on a line by itself
+
+```
+Subject: turn off server please
+
+very urgent
+.
+```
+
+> 250 2.0.0 73864a49 Message accepted for delivery
+
+You will find the email under `/var/spool` or `/var/mail` or similar.
+
+If unsure, just take a part of your email, like `FRAGMENT="turn off server please"`, then `grep` for it:
+
+ ```bash
+sudo grep -r $FRAGMENT /var/spool/*
+ ```
+

data/gpg.md

@@ -82,7 +82,7 @@ This is a fingerprint.
 You can now decide the trust level (this stays on your computer).
 
 ```bash
-gpg --edit-key *CD30421FD825696BD95F1FF644C62C57B790D3CF*
+gpg --edit-key CD30421FD825696BD95F1FF644C62C57B790D3CF
 ```
 
 Once you're in the interface, type `trust`.
@@ -91,29 +91,52 @@ Once you're in the interface, type `trust`.
 gpg --sign-key alice@posteo.net
 ```
 
-Then send those trusted keys up to a server, so people can see you have verified them:
+# Swapping Keys
+
+This system relies on a ring of people swapping key information.
+
+## Sending
+
+Send those trusted keys up to a server, so people can see you have verified them:
 
 ```bash
-gpg --send-keys *024C6B1C84449BD1CB4DF7A152295D2377F4D70F*
+gpg --send-keys 024C6B1C84449BD1CB4DF7A152295D2377F4D70F
+```
+
+## Upload Your Keys
+
+## Add More Key Servers
+
+Key servers often swap keys, but it's best to just send to multiple places immediately.
+You can add key servers by adding this to `~/.gnupg/gpg.conf`.
+
+```
+keyserver hkps://keys.openpgp.org
+keyserver hkps://mail-api.proton.me
+keyserver hkps://keys.mailvelope.com
 ```
 
 # Refresh Keys
 
+Refreshing keys will tell you if some key you have contains a signature from someone you already trust, or if someone has published a revocation certificate (meaning their key should not be trusted any more).
+
 ```bash
 gpg --refresh-keys
 ```
 
+You can use the [crontab](../basics/cron.md) to refresh keys.
+
 # Export
 
 Your public key:
 
 ```bash
-gpg --output *me*.gpg --armor --export
+gpg --output me.gpg --armor --export
 ```
 
 or
 
 ```bash
-gpg --export -a *person@email.tld* > *my_key*.pub
+gpg --export -a person@email.tld > my_key.pub
 ```
 

data/radicale.md

@@ -0,0 +1,126 @@
+---
+title: "radicale and nginx"
+tags: [ "data", "calendar" ]
+---
+
+Check before you start:
+
+- you have a normally running site on nginx already.
+- your server has the directory `/etc/nginx/sites-enabled/` enabled in the nginx config.
+
+## Installation and Service
+
+Install `radicale` through your package manager (not `pip`).
+The standard `radicale` package should come with a nice `systemd` service file.
+
+If the service comes already-started, stop it immediately:
+
+```bash
+sudo systemctl stop radicale
+```
+
+## Set up Passwords
+
+Edit `/etc/radicale/config`, changing the `[auth]` section from this:
+
+```
+#type = none
+```
+
+...to this:
+```
+#type = htpasswd
+```
+
+If the service is started, restart it to make sure nobody can sign in without a password.
+
+
+Next, find the `htpasswd` program.
+You might get it in the `apache` package or similar.
+
+`htpasswd` allows you to generate passwords for users, and place them in `/etc/radicale/users`.
+
+```bash
+PASS="$(xkcdpass)
+htpasswd -nb $USER "$PASS" | sudo tee -a /etc/radicale/users
+echo "Your username is $USER"
+echo "Your password is $PASS"
+```
+Right now, you can't sign into the server except through the localhost, which is pointless.
+So now we add a subdomain to `nginx`.
+
+```nginx
+
+echo '
+ server {
+    if ($host = cal.DOMAIN) {
+        return 301 https://$host$request_uri;
+    } # managed by Certbot
+
+
+     listen 80;
+     server_name cal.DOMAIN;
+                                                                                        
+     location / {
+         proxy_pass http://localhost:5232;
+         proxy_set_header Host $host;
+         proxy_set_header X-Real-IP $remote_addr;
+         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+     }
+                                                                                        
+     return 301 https://$server_name$request_uri;
+ 
+
+}
+                                                                                        
+ server {
+     listen 443 ssl;
+     server_name cal.DOMAIN;
+    ssl_certificate /etc/letsencrypt/live/cal.DOMAIN/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/cal.DOMAIN/privkey.pem; # managed by Certbot
+                                                                                        
+     location / {
+         proxy_pass http://localhost:5232;
+         proxy_set_header Host $host;
+         proxy_set_header X-Real-IP $remote_addr;
+         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+     }
+ 
+}
+' > /etc/nginx/sites-available/radicale
+sudo ln -s /etc/nginx/sites-available/radicale /etc/nginx/sites-enables/
+```
+
+Finally, replace the example `DOMAIN` with your actual domain name.
+
+```bash
+DOMAIN=whatever.com
+sudo sed -i "s/DOMAIN/$DOMAIN/g" /etc/nginx/sites-available/radicale 
+
+```
+
+(optional: replace that `cal.` prefix with anything else)
+
+Check nginx is happy:
+
+
+```bash
+sudo nginx -t
+```
+You will almost certainly need a new SSL certificate for the site:
+
+```bash
+sudo certbod -d cal.$DOMAIN
+```
+
+Start or restart both services:
+
+
+```bash
+sudo systemctl start radicale
+sudo systemctl restart nginx
+```
+
+You should now be able to log into your calendar, and add it to a phone.
+
+NB: you don't need the port number.

distros/void/Brand_Name_Wallpaper.md

@@ -0,0 +1,33 @@
+---
+title: "Brand Name Wallpaper"
+tags: [ "void" ]
+---
+
+To automatically stick the logo onto your background, do these commands in the directory.
+
+Get the void linux logo from wikipedia
+
+```bash
+wget https://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Void_Linux_logo.svg/256px-Void_Linux_logo.svg.png?20170131170632
+```
+
+Rename it, and resize it (the standard size is too small for most wallpapers)
+
+```bash
+convert -resize 200% '256px-Void_Linux_logo.svg.png?20170131170632' void-logo.png
+```
+Download a pretty wallpaper
+
+```bash
+wget http://wallpapercave.com/wp/Wlm9Gv0.jpg
+```
+
+Put the void logo on all *jpg and *png images
+
+```bash
+for x in *.jpg
+	do
+	composite -compose multiply -gravity Center void-logo.png "$x" "$x"
+done
+```
+

distros/void/locale.md

@@ -0,0 +1,54 @@
+---
+title: "locales"
+tags: [ "void" ]
+---
+
+Check the current locales:
+
+
+```bash
+locale -a
+```
+
+Add the languages you want by editing `/etc/default/libc-locales`, and uncommenting your choice:
+
+```bash
+#en_DK.UTF-8 UTF-8  
+#en_DK ISO-8859-1  
+en_GB.UTF-8 UTF-8  
+en_GB ISO-8859-1  
+#en_HK.UTF-8 UTF-8  
+#en_HK ISO-8859-1  
+```
+
+Now you can generate what you need for those languages.
+However, instead of generating what you need, you're going to generate everything which needs updating:
+
+
+```bash
+sudo xbps-reconfigure glibc-locales
+```
+
+Finally, select your chosen locale by placing it in `/etc/locale.conf`.
+
+```bash
+echo "LC_ALL=en_GB.UTF-8
+LANG=en_GB.UTF-8
+LANGUAGE=en_GB.UTF-8" > /etc/locale.conf
+
+
+#en_DK.UTF-8 UTF-8  
+#en_DK ISO-8859-1  
+en_GB.UTF-8 UTF-8  
+en_GB ISO-8859-1  
+#en_HK.UTF-8 UTF-8  
+#en_HK ISO-8859-1  
+```
+
+Check your new locales are available:
+
+
+```bash
+locale -a
+```
+

networking/ssh.md

@@ -0,0 +1,89 @@
+---
+title: "ssh"
+tags: [ "networking" ]
+---
+# Basic `ssh`
+
+Try out basic ssh by accessing `git.charm.sh`, without needing authentication:
+
+
+```bash
+ssh git.charm.sh
+```
+
+Start an ssh server to try it out.
+The ssh server is sometimes in a package called `openssh`, and sometimes only in `openssh-server`.
+
+Once it's installed, check it's working:
+
+```bash
+sudo systemctl status ssh
+```
+
+If that doesn't work, the service may be called `sshd`.
+
+```bash
+sudo systemctl status sshd
+```
+
+Then start that service:
+
+```bash
+sudo systemctl start sshd
+```
+Test it works by using ssh into your own system, from inside:
+
+
+```bash
+ssh $USER@localhost
+```
+
+Access the computer from another computer on the same local network by finding your computer's IP address.
+
+
+```bash
+ip address | grep inet
+```
+
+Here is mine:
+
+
+> inet 127.0.0.1/8 scope host lo
+> 
+> inet6 ::1/128 scope host noprefixroute
+> 
+> inet 192.168.0.12/24 brd 192.168.0.255 scope global dynamic noprefixroute en
+
+
+The first one starts `127`, which means it returns back to that computer (like `localhost`).
+The second is an ipv6 address, which is too angelic for this world, and has yet to ascend.
+The third will work from a remote computer.
+
+
+```bash
+ssh $USERNAME@IP_ADDRESS
+```
+
+Once you have that, generate some ssh keys:
+
+```bash
+ssh-keygen
+```
+
+Look at your keys:
+
+
+```bash
+ls ~/.ssh
+```
+
+You can share the one ending in `.pub` freely.
+The other is secret.
+
+Now send those keys to a remote computer:
+
+```bash
+ssh-copy-id $USERNAME@IP_ADDRESS
+```
+
+Now you can log in without a password.

system/bash_tricks.md

@@ -1,6 +1,6 @@
 ---
-title: "Terminal Tips"
+title: "bash tips"
-tags: [ "Documentation", "System" ]
+tags: [ "Documentation", "Shell", "POSIX" ]
 ---
 ## Track Live Changes
 
@@ -12,6 +12,11 @@ See changes in a directory, as it changes:
 
 `watch -d ls *directory*`
 
+Or use the `-g` flag to exit once the output changes.
+This command will look at whether you're connected to the internet, and turn into a rainbow once the connection hits.
+
+> watch -g ip address && clear && ip address | lolcat
+
 ## Automatic Renaming
 
 There are a bunch of files:
@@ -34,17 +39,19 @@ done
 
 IFS is the field separator.  This is required to denote the different files as marked by a new line, and not the spaces.
 
+(Alternatively, just install `renameutils` and do `rename Column Alice *`)
+
 ## Arguments and Input
 
 The `rm' program takes arguments, but not `stdin' from a keyboard, and therefore programs cannot pipe results into rm.
-
+To fix this, use `xargs` to turn the stdin into an argument.
-That said, we can sometimes pipe into rm with `xargs rm' to turn the stdin into an argument.  For example, if we have a list of files called `list.txt' then we could use cat as so:
+For example, if we have a list of files called `list.txt' then we could use cat as so:
 
 ```bash
 cat list.txt | xargs rm
 ```
 
-... *However*, this wouldn't work if spaces were included, as rm would take everything literally.
+Of course if spaces are included in the file, you would have to account for that.
 
 ## Numbers
 
@@ -60,6 +67,18 @@ Add number to variables with:
 
 `((n--))` works identically.
 
+### POSIX WARNING
+
+The number commands above work in `bash`, but not in bare-ass POSIX shells, such as `dash`.
+
+Instead, you might do:
+
+```sh
+x=2
+x=$(( x +1 ))
+x=$(( x*x ))
+```
+
 ## Finding Duplicate Files
 
 ```bash
@@ -71,3 +90,27 @@ find . -type f -exec md5sum '{}' ';' | sort | uniq --all-repeated=separate -w 15
 ```bash
 cat /dev/urandom | tr -cd [:alnum:] | dd bs=1 count=200 status=none && echo
 ```
+
+## Temporary Working Directory
+
+Try something out in a random directory in `/tmp` so the files will be deleted when you next shut down.
+
+```bash
+mktemp -d
+```
+
+That gives you a random directory to mess about in.
+
+```bash
+   dir=$(mktemp -d)
+   for x in {A..Z}; do
+      fortune > "$dir"/chimpan-$x
+   done
+   cd $dir
+```
+
+### POSIX WARNING
+
+These smart-brackets are a bash feature.
+If you try to use `{A..Z}` in dash, it will think of this as a single item.
+

system/cron.md

@@ -0,0 +1 @@
+../basics/cron.md

vim/vim_in_bash.md

@@ -0,0 +1,19 @@
+---
+title: "vim in bash"
+tags: [ "vim", "bash", "inputrc" ]
+---
+
+Put bash in vim mode!
+
+Place the following in your `~/.inputrc`:
+
+```bash
+set editing-mode vi
+set show-mode-in-prompt on
+set vi-ins-mode-string \1\e[33;32m\2[>]=\1\e[0m\2
+set vi-cmd-mode-string \1\e[33;1m\2[?]=\1\e[0m\2
+
+set keymap vi-insert
+RETURN: "\e\n"
+```
+

vision/imagemagick.md

@@ -2,7 +2,6 @@
 title: "imagemagick"
 tags: [ "Documentation", "Vision" ]
 ---
-[Source](http://lxlinux.com/imagemagick.html)
 
 Convert jpg to png.
 
@@ -41,13 +40,13 @@ convert image.jpg -resize 25% output.jpg
 
 # Trim images to border
 
-This is generally used for transparrent images.
+This is generally used for transparent images.
 
 ```bash
 convert -trim image.png output.png
 ```
 
-Make the white of an image transparrent.
+Make the white of an image transparent.
 
 ```bash
 convert -transparent white -fuzz 10% input.png output.png
@@ -101,7 +100,7 @@ See your installed fonts:
 convert -list font
 ```
 
-Make na image showing day of the week:
+Make an image showing day of the week:
 
 ```bash
 convert -fill blue -font Sauce-Code-Pro-Semibold-Nerd-Font-Complete-Mono -gravity center -pointsize 79 label:$(date +%A) day.png