Arsenal de shell

Martin Tourneboeuf

November 17, 2020

Tabla de contenidos

1. Nota

         Sistema, Configuración, Nota

2. Shell

         Readline, Bash, Zsh

3. Edición

         Vim y Git

4. Viaje

         Tmux, Fsf, Rg

Entrenarse

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Afilar

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No precipitarse

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Notar

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Evernote

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Vimwiki

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 1 presentation.md  2 script.md                            X
  1 ---                                                     
  2 title: Arsenal de shell                                 
  3 author: Tinmarino                                       
  4 description: Quien quiere la paz, prepara ... la paz!   
    Los patrones de código se aplican desde la más humilde  
    linea.                                                  
  5 date: Novermber 14, 2020                                
  6 make: pandoc -s --webtex -t slidy presentation.md -o    
    presentation.html                                       
  7 slidy-url: ../res/slidy                                 
  8 header-includes: |                                      
  9   <link rel="stylesheet" type="text/css" href="../res/  
    asciinema-player.css" />                                
 10   <script src="../res/asciinema-player.js"></script>    
 11   <link rel="stylesheet" type="text/css" href="../res/  
    main-style.css" />                                      
 12 ---                                                     
 13                                                         
 14 ### Tabla de contenidos [22] ---------------------------
 36 ### Entrenarse [12] ------------------------------------
 48 ### Afilar [7] -----------------------------------------
 55 ### No precipitarse [7] --------------------------------
 62 ### Notar [7] ------------------------------------------
 69 ### Evernote [7] ---------------------------------------
 76 ### Vimwiki [24] ---------------------------------------
100 ### No repetir [7] -------------------------------------
107 ### Readline [9] ---------------------------------------
116 ### Bash [123] -----------------------------------------
239 ### Vim [168] ------------------------------------------
407 ### Vim Plugin [12] ------------------------------------
419 ### Vim Vimspector [10] --------------------------------
429 ### Git [8] --------------------------------------------
437 ### Ahorar tu cerebro [7] ------------------------------
444 ### Hacerlo de tu forma [11] ---------------------------
455 ### Simplificar [7] ------------------------------------
462 ### Tmux [10] ------------------------------------------
472 ### Fzf [9] --------------------------------------------
481 ### Rg<sup style="font-size:50%;"><a href="#foo…  [34] --
515 ### Mas [33] -------------------------------------------
548 ### Enlace [56] ----------------------------------------

No repetir

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Readline

Bash

Alias

alias mgr='su - almamgr'
alias op='su - almaop'

Variable

¡No dejes tu prompt[1] definirte, define tu prompt!

¿Qué debe contener un PS1[2]?

[1] Prompt: Indicador de commando

[2] PS1: Prompt String One

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command_not_found_handle

command_not_found_handle() {
  echo "Buuuu! I don't know command $1"
}
export -f command_not_found_handle

comando_malo
# OUTPUTS: Buuu ... comando_malo

Funciones: más que alias

function w () {
  if [[ -z "$1" ]]; then vim -c"call Windex(1)"
  else vim -c"call Windex(1)" -c":VimwikiGoto $1"
  fi
}
# Para ver las funciones definidas
typeset -f

Comandos: más que funciones

Definir sus propios commands en ~/.local/bin

Vim

Mi precioso

noremap s :update!<CR>

¿De que sirve el “s” (por defecto)?

¿Lo tienes mapeado?

¿Usas el “s” por defecto?

¿Porque no lo tienes mapeado?

A mano

let mapleader = ','
let maplocalleader = ','

¿Quién usa otro (delatenlo)?

Las cifras

" Foldlevel <- z
map z1  :set foldlevel=0<CR><Esc>
" ...
map z9  :set foldlevel=8<CR><Esc>

" Tab <- g (like gt and gT builtin: "Goto Tab")
noremap g1 :1tabnext<CR><Esc>
" ...
noremap g9 :9tabnext<CR><Esc>

¿Tienes ejemplos de uso de las teclas con cifras?

Plugin asincrónico

" Define: Lazy loader
function! TimerPack(timer) abort
  packadd ale
  packadd vimwiki
  " Youcompleteme: is verbose at init if no python
  try
    python3 '42'
    " Deletes the vim intro screen
    packadd youcompleteme
  catch | endtry
endfunction

" Call it
if has('timers')
  call timer_start(0, 'TimerPack')
else
  call TimerPack(42)
endif

¿Cómo manejas tus plugins?

Plugin justo a tiempo

noremap <leader>n :silent packadd devicons <CR>:silent packadd nerdtree <CR>:call NERDTreeToogle()<CR>
noremap <leader>u :silent packadd undotree <CR>:UndotreeToggle<CR>

¿Qué plugin cargas justo a tiempo?

Configuración genérica

filetype plugin indent on | syntax on
set encoding=utf-8 | scriptencoding uft-8
set mouse=a

if has('persistent_undo')
  set undodir=$HOME/.vim/undo
  set undofile
endif

¿Te gustaría que este instalado en almamgr?

Trucos

w ! sudo tee %
windo diffthis

¿Qué hace eso?

Vim Plugin

Vim Vimspector

Git

Ahorrar tu cerebro

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Hacerlo de tu forma

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Simplificar

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Tmux

Fzf

Rg[1]

Grep in parallel .. and in Rust 

~/Test/ripgrep-0.7.1-------------------------------------
$ rg fast README.md     # Args: regex files*
75:  faster than both. (N.B. It is not, strictly speaking, a "drop-in" replacement
119:### Is it really faster than everything else?
124:Summarizing, `ripgrep` is fast because:
129:  optimizations to make searching very fast.
~/Test/ripgrep-0.7.1-------------------------------------
$ rg 'fn write\\('      # Recursive by default
src/printer.rs
469:    fn write(&mut self, buf: &[u8]) {
termcolor/src/lib.rs
227:    fn write(&mut self, b: &[u8]) -> io::Result<usize> {
250:    fn write(&mut self, b: &[u8]) -> io::Result<usize> {
~/Test/ripgrep-0.7.1-------------------------------------
$ rg clap -g '*.toml'   # Glob for filename
Cargo.toml
35:clap = "2.26"
51:clap = "2.26"
~/Test/ripgrep-0.7.1-------------------------------------
$ rg clap -g '!*.toml'  # Also negative glob
build.rs
2:extern crate clap;
9:use clap::Shell;
src/app.rs
3:use clap::{App, AppSettings, Arg, ArgSettings};
39:/// Build a clap application parameterized by usage strings.
~/Test/ripgrep-0.7.1-------------------------------------
$ rg fast README.md -r NEW             # Replace match (--replace)
75:  NEWer than both. (N.B. It is not, strictly speaking, a "drop-in" replacement
88:  color and full Unicode support. Unlike GNU grep, `ripgrep` stays NEW while
119:### Is it really NEWer than everything else?
124:Summarizing, `ripgrep` is NEW because:
129:  optimizations to make searching very NEW.
~/Test/ripgrep-0.7.1-------------------------------------
$ rg 'fast\s+(\w+)' README.md -r 'NEW-$1-'
>                                      `# Replace submatch` \
> `# rg will never modify your files, but sed can:` \
> `# rg 'fast\s+(\w+)' -l | xargs sed -i -E 's/fast\s+(\w+)/NEW-\1-/g'`
> `# rg 'fast\s+(\w+)' -l | xargs sed -i -E 's/fast\s+(\w+)/NEW-\1-/g'`
88:  color and full Unicode support. Unlike GNU grep, `ripgrep` stays NEW-while-
124:Summarizing, `ripgrep` is NEW-because-:
~/Test/ripgrep-0.7.1-------------------------------------
$ time find ~/wiki/ > /dev/null         # Find time (no dot file)
real    0m0.311s
user    0m0.091s
sys     0m0.218s
~/Test/ripgrep-0.7.1-------------------------------------
$ time rg --files ~/wiki/ > /dev/null   # Rg time
real    0m0.170s
user    0m0.926s
sys     0m0.910s

[1] RG: RipGrep <= Rest In Peace “Global / Regular Expression / Print” (g/re/p)

Más

Conventiones

Manejar distintos shell

  1. System Window manager: Alt-Tab, Alt-Backtick, Mouse, Ctrl-Alt-fn
  2. Default terminal emulator: Konsole (KDE), Gnome-Terminal, Terminal (Mac)
  3. Install Terminal Emulator: Tilix, Alacritty, (no hay Terminator)
  4. Soft Multiplexing: Screen, Tmux

Enlace

Meta

Shell: Readline y Bash

Commun: Vim y Git

Para buscar configuraciones, dar vuelta en github

Otros: Tmux, Fzf y Rg

System

Manuals