About the author

My name is Solène Rapenne. I like learning and sharing experiences about IT stuff. Hobbies: '(BSD OpenBSD h+ Lisp cmdline gaming internet-stuff Crossbow). I love % and lambda characters. OpenBSD developer solene@.

Contact : solene on Freenode or solene+www at dataswamp dot org

Git cheat sheet

Written by Solène, on 08 June 2016.
Tags: #cheatsheet #git

Here is my git cheat sheet ! Because I don’t like git I never remember how to do X or Y with it so I need to write down simple commands ! (I am used to darcs and mercurial but with the “git trend” I need to learn it and use it).

Undo uncommited changes on a tracked file

$ git reset --hard

Get the latest version before working

$ git pull

Make a commit containing all tracked files

$ git commit -m "Commit message" -a

Send the commit to the repository

$ git push

My mutt cheat sheet

Written by Solène, on 03 May 2016.
Tags: #cheatsheet #mutt #email

I am learning mutt and I am lost. If you are like me, you may like the following cheat sheet!

I am using it through imap, it may be different with local mailbox.

Case is important !

  • Change folder : Y
  • Filter the display : l (for limit) and then a filter like this
  • ~d <2w : ~d for date and <2w for “less than 2 weeks” no space in <2w !
  • ~b “hello mate” : ~b is for body and the string is something to find in the body
  • ~f somebody@zxy.abc : ~f for from and you can make an expression
  • ~s “Urgent” : ~s stands for subject and use a pattern
  • Delete messages with filter : D with a filter, if you used limit before it will propose by default the filter of limit
  • Delete a message : d (it will be marked as Deleted)

Deleted messages will be removed when you change the folder or if you exit. Pressing $ can do it manually.

My zsh cheat sheet

Written by Solène, on 03 May 2016.
Tags: #cheatsheet #zsh

I may add new things in the future, as they come for me, if I find new features useful.

How to repeat a command n time

repeat 5 curl http://localhost/counter_add.php

How to expand recursively

If you want to find every file ending by .lisp in the folder and subfolder you can use the following syntax. Using ****** inside a pattern while do a recursive globbing.

ls **/*.lisp

Work with temp files

If you want to work on some command outputs without having to manage temporary files, zsh can do it for you with the following syntax: =(command that produces stdout).

In the example we will use emacs to open the list of the files in our personal folder.

emacs =(find ~ -type f)

This syntax will produce a temp file that will be removed when emacs exits.

My ~/.zshrc

here is my ~/.zshrc, very simple (I didn’t pasted the aliases I have), I have a 1000 lines history that skips duplicates.

HISTFILE=~/.histfile
HISTSIZE=1000
SAVEHIST=1000
setopt hist_ignore_all_dups
setopt appendhistory
bindkey -e
zstyle :compinstall filename '/home/solene/.zshrc'
autoload -Uz compinit
compinit
export LANGUAGE=fr_FR.UTF-8
export LANG=fr_FR.UTF-8
export LC_ALL=fr_FR.UTF-8
export LC_CTYPE=fr_FR.UTF-8
export LC_MESSAGES=fr_FR.UTF-8

Simple emacs config

Written by Solène, on 02 May 2016.
Tags: #emacs #cheatsheet

Here is a dump of my emacs config file. That may be useful for some emacs users who begin.

If you doesn’t want to have your_filename.txt~ files with a tilde at the end (this is a default backup file), add this

; I don't want to have backup files everywhere with filename~ name 
(setq backup-inhibited t) 
(setq auto-save-default nil)

To have parenthesis highlighting on match, which is very useful, you will need this

; show match parenthesis 
(show-paren-mode 1)

I really like this one. It will save the cursor position in every file you edit. When you edit it again, you start exactly where you leaved the last time.

; keep the position of the cursor after editing 
(setq save-place-file "~/.emacs.d/saveplace") 
(setq-default save-place t) 
(require 'saveplace)`

If you write in utf–8 (which is very common now) you should add this.

; utf8 
(prefer-coding-system 'utf-8)

Emacs modes are used depending on the extension of a file. Sometime you need to edit files with a custom extension but you want to use a mode for it. So, you just need to add some line like this to get your mode automatically when you load the file.

; associate extension - mode 
(add-to-list 'auto-mode-alist '("\\.md\\'" . markdown-mode)) 
(add-to-list 'auto-mode-alist '("\\.tpl$" . html-mode))

My Org-mode part in the config file

(require 'org)
(define-key global-map "\C-ca" 'org-agenda)
(setq org-log-done t)
(setq org-agenda-files (list "~/Org/work.org" "~/Org/home.org"))

Stop mixing tabs and space when indenting

(setq indent-tabs-mode nil)