Convert all wav in dir to mp3
for i in *.wav; do lame -b 320 "$i"; done
Get IP on macos
ipconfig getifaddr en0
Convert copied md to html
You can use docx also
pbpaste | pandoc -f markdown -t html | pbcopy
You can also use it as an alias in your bash profile like so:
alias md="pbpaste | pandoc -f markdown -t html | pbcopy; echo 'Conversion done.'"
Now, just type md to swap the Markdown in your clipboard for HTML.
Update all formulas
brew upgrade
Move all file inside directory to upper dir
from this stack exchange
mv * .[^.]* ..
Explanation: the mv command moves files and directories. The last argument to mv is the target (in this case the directory one step "up" in the tree, ..). The arguments before that are the source files and directories. The asterisk (*) is a wildcard which matches all files which do not start with a dot. Files that start with a dot (dotfiles) are "hidden". They are matched using the pattern .[^.]*(see edit below)
Why .[^.]* instead of .* ?
The pattern .* also matches . and ... Since you don't want to (and cannot) move those, it's better to use a pattern which matches any filename starting with a dot except those two. The pattern .[^.]* does just that: it matches any filename (1) starting with a dot (2) followed by a character which is not a dot (3) followed by zero or more arbitrary characters.
Hide File in MacOS
chflags hidden [file_name] #use nohidden to revert
Compress Gif
- Reduce resolution by using preview
- Reduce number of colors using
gifsicle
gifsicle -O3 --colors 256 -i in.gif -o out.gif
- Add dithering with
--dither=[method]
-
ro64 - error diffusion
-
o3 | o4 | o8 - ordered pattern
- If gif is not looping anymore, use
imagemagick
convert -loop 0 input ouptput
Fuzzy search
Using the fzf plugin
use ** + tab in a command to open a search bar.
Create symbolic link
ln -s source destination
Dithering
Using magick
-dither FloySteinberg *or* Riemersma
OR
-ordered-dither [map]
list of maps :
- threshold 1x1 Threshold 1x1 (non-dither)
- checks 2x1 Checkerboard 2x1 (dither)
- o2x2 2x2 Ordered 2x2 (dispersed)
- o3x3 3x3 Ordered 3x3 (dispersed)
- o4x4 4x4 Ordered 4x4 (dispersed)
- o8x8 8x8 Ordered 8x8 (dispersed)
- h4x4a 4x1 Halftone 4x4 (angled)
- h6x6a 6x1 Halftone 6x6 (angled)
- h8x8a 8x1 Halftone 8x8 (angled)
- h4x4o Halftone 4x4 (orthogonal)
- h6x6o Halftone 6x6 (orthogonal)
- h8x8o Halftone 8x8 (orthogonal)
- h16x16o Halftone 16x16 (orthogonal)
- c5x5b c5x5 Circles 5x5 (black)
- c5x5w Circles 5x5 (white)
- c6x6b c6x6 Circles 6x6 (black)
- c6x6w Circles 6x6 (white)
- c7x7b c7x7 Circles 7x7 (black)
- c7x7w Circles 7x7 (white)
magick input.png -resize -dither FloydSteinberg
For a black and white dither, put the image in grey before dithering with -colorspace Grey
// maybe limit the color number to be sure -colors 2
After dithering add -threshold 50%
easy manipulation of color space
Use the magick command with the +level-colors flag.
+level-colors [replace black with], [replace white with]
# exemple
+level-colors green, orchid2
List of all imagemagick colors can found on this webpage