Favourite CLI tools

Ncdu

Ncdu is a disk usage analyzer with an ncurses interface.

https://dev.yorhel.nl/ncdu

Dust

du + rust = dust. Like du but more intuitive.

https://github.com/bootandy/dust

Eza

eza is a modern, maintained replacement for the venerable file-listing command-line program ls

https://eza.rocks/

ShellCheck

finds bugs in your shell scripts. Static code analyzer.

https://www.shellcheck.net/

shfmt

Shell script formatting

https://github.com/mvdan/sh#shfmt

yt-dlp

https://github.com/yt-dlp/yt-dlp#usage-and-options

fzf

fzf is a general-purpose command-line fuzzy finder.

https://github.com/junegunn/fzf

ImageMagick

Free software for editing and manipulating digital images.

Command-line options

Example: converting all .png files to .jpg format in a directory.
magick mogrify -format jpg -path /some/output_dir/ -sampling-factor 4:2:0 -quality 100 -interlace plane -strip *.png

Notes

• If the -path option is used with mogrify, the original (input) files won't be overwritten. New output files will be written to the path.
• -interlace option: use either 'Line' or 'Plane' to create an interlaced PNG or progressive JPEG.
  Reduces JPEG file sizes by a small margin.
• quality level significantly affects file size for higher resolutions. For JPEG, try a value of 85 or lower for images with high image resolutions in order to achieve small(er) file sizes.