Some random useful scripts I wrote over the years

Run command in a pager without stdout and stderr mixing Useful for commands output of which exceeds terminal buffer or for terminals without scrolling, like st

cless cargo build

Dependencies: less, unbuffer

Shortcut for inserting data from clipboard:

somecmd $(clipb)
somecmd `clipb`

Dependencies: xclip

Script for cutting a picture into a grid to be printed on A4 (297x210mm) paper to be used for creating stencils for street art. For example, to prepare a pic.png image to be made into a stencil for a 3x2m wall:

cut-stencil pic.png 3000x2000

Dependencies: imagemagick

Git diff as a tree of files

difftree HEAD~

Dependencies: git, tree

Run fzf in st terminal window

Dependencies: fzf, st

dmenu_run but with fzft

Dependencies: fzft

Script for generating the README.md for this repo:

./gendoc.sh > README.md

Dependencies: grep, sed

Constructs github permalinks given filename and line number or range of lines. Formats them as [src/file.js:3](...) markdown link and inserts into clipboard

gen-gh-permalink src/file.js 3 4

You can use -s/--snippet parameter and pipe a piece of code into this script to get

[src/file.js:3](...):
```js
const a = 3;
...
```

-style snippet.

Useful vim bindings:

nnoremap gH :execute '!' . 'gen-gh-permalink ' . shellescape(expand('%')) . ' ' . line(".")<cr>
vnoremap gH <esc>:execute '!' . 'gen-gh-permalink ' . shellescape(expand('%')) . ' ' . getpos("'<")[1] . ' ' . getpos("'>")[1]<cr>
vnoremap gHH <esc>:execute "'<,'>w !" . 'gen-gh-permalink -s ' . shellescape(expand('%')) . ' ' . getpos("'<")[1] . ' ' . getpos("'>")[1]<cr>

Dependencies: git, grep, sed, xclip

Switch branches with fzf

Dependencies: fzf, git, sed

Merge branches quicker with fzf

Dependencies: fzf, git

Rebase branches quicker with fzf

Dependencies: fzf, git

Quickly create a PNG made with LaTeX. Useful for formulas.

Dependencies: dvipng, imagemagick, latex, vim

Take a snapshot of current environment, removing non-variables

mkenv .envrc
source .envrc

Dependencies: grep, sed

Preview plantuml files with feh

Dependencies: feh, plantuml

Use a hook file to rerun a command. Useful to trigger recompilation

whook .hook cargo build

Example of the vim binding triggering a hook

:nnoremap <F12> :call system('touch .hook')<cr>

Dependencies: inotifywait, less, unbuffer