nixos-config/README.org

#+TITLE: Erwin's NixOS config

This configures my machines.

* Useful oneliners
** Remove all files except the smallest

#+begin_example
$ ls -s size | head -n 1 | xargs stat -c %s | awk '{print $1 + 1}' | xargs -I '%S' fd -S +%Sb -X rm {} \;
#+end_example

| cmd                                  | Explanation                                                     |
|--------------------------------------+-----------------------------------------------------------------|
| =ls -s size=                           | List all files, sort by size (=ls= is aliased to =eza= in my setup) |
| =head -n 1=                            | Take the first line                                             |
| =xargs stat -c %s=                     | Print the size in bytes                                         |
| =awk '{print $1 + 1}=                  | Add one to it                                                   |
| =xargs -I '%S' fd -S +%Sb -X rm {} \;= | Find all files larger than the smallest and delete them         |