add more old docs

docs/etc/sed.md

+# Sed
+
+## Greedy Regexp in sed
+
+<http://www.skybert.net/unix/non-greedy-matching-in-sed/>
+
+> What you need to do, is to match against everything
+> but the closing delimiter, in our case, the '@'.
+> This is done with the character group notation
+> and the negator ^ in front of the closing delimiter:
+
+```sh
+echo 'The @HashMap@ and @ArrayList@ classes are great!' | sed 's|@\([^@]*\)@|<code>\1</code>|g'
+```
+
+## Multiple sed cmds in cli
+
+```sh
+sed "s/:/\//g; s/git@/https:\/\//"
+```
+
+## Change date format
+
+```sh
+sed -i -E "s|([0-9]{4})/([0-9]{2})/([0-9]{2})|\1-\2-\3|" transactions-*
+```
+
+## Remove empty lines and comments
+
+<https://stackoverflow.com/a/23808815>
+
+```sh
+sed -e '/^\s*#.*$/d' -e '/^\s*$/d' inputFile
+```
+
+## Replace after matching line
+
+<https://stackoverflow.com/a/18620241>
+
+i.e. Replace third line after match (`foo`):
+
+```sh
+sed -i '/foo/{n;n;n;s/bar/baz/}' test.txt
+```

docs/templating/jinja.md

+# Jinja
+
+- [Website](https://jinja.palletsprojects.com/)
+- [Docs: Templates](https://jinja.palletsprojects.com/en/3.1.x/templates/)
+
+## CLI usage
+
+## jinja2-cli
+
+- [jinja2-cli](https://github.com/mattrobenolt/jinja2-cli)
+
+### Install
+
+```sh
+brew install jinja2-cli
+```
+
+or
+
+```sh
+pipx install jinja2-cli
+```
+
+### Usage
+
+#### Yaml
+
+```sh
+cd ~/projects/templating/jinja
+jinja2 indentation.j2 data.yml
+```
+
+### Other jinja cli tools
+
+- [j2cli](https://github.com/kolypto/j2cli): Last commit 2019
+- [jinja-cli](https://github.com/cykerway/jinja-cli): Last commit 2021-12
+
+## Ansible
+
+[Playboooks templating](https://docs.ansible.com/ansible/latest/user_guide/playbooks_templating.html)
+
+> Ansible uses Jinja2 templating to enable dynamic expressions and access to
+> variables

docs/terminal/tmux.md

+# Tmux
+
+Tmux cheat sheet: <https://gist.github.com/MohamedAlaa/2961058>
+
+- `~/projects/terminals/tmux`
+
+## Plugins
+
+- [Tmux Plugin Manager](https://github.com/tmux-plugins/tpm)
+- [Tmux plugin list](https://github.com/tmux-plugins/list)
+
+## Tmux issues
+
+`open terminal failed: missing or unsuitable terminal: xterm-kitty`
+
+```sh
+export TERM=screen
+```
+
+## Script tmux window layout
+
+### tmuxp
+
+[tmuxp](https://tmuxp.git-pull.com/)
+
+### Other
+
+- [tmuxinator](https://github.com/tmuxinator/tmuxinator) (ruby)
+
+## tmux like cluster-ssh
+
+- [xpanes](https://github.com/greymd/tmux-xpanes)
+- [intmux](https://github.com/dsummersl/intmux)
+- [tmux-cssh](https://github.com/peikk0/tmux-cssh)
+- [davidscholberg/tmux-cluster](https://github.com/davidscholberg/tmux-cluster) stalled at 2016
+- [tcluster](https://github.com/ntnn/tcluster) stalled at 2016

docs/web/hugo.md

+# Hugo
+
+<https://gohugo.io/>
+<https://themes.gohugo.io/>
+
+<https://gohugo.io/getting-started/quick-start/>
+
+## Create new site
+
+```sh
+hugo new site openappstech-website
+git submodule add https://github.com/themefisher/vex-hugo.git themes/vex-hugo
+echo 'theme = "vex-hugo"' >> config.toml
+
+hugo server
+```