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Q&A Efficiently determining disk usage of a folder (without starting from scratch every time)

ncdu does that. from ncdu --help: -o FILE Export scanned directory to FILE -f FILE Import scanned directory from FILE You can start it with any direc...

posted 4mo ago by GeraldS‭  ·  edited 4mo ago by GeraldS‭

Answer
#2: Post edited by user avatar GeraldS‭ · 2024-07-11T09:21:42Z (4 months ago)
added test results.
  • `ncdu` does that.
  • from `ncdu --help`:
  • ```
  • -o FILE Export scanned directory to FILE
  • -f FILE Import scanned directory from FILE
  • ```
  • You can start it with any directory you want, skip unwanted mounts, even delete files and folders directly from inside the program.
  • `ncdu` does that.
  • from `ncdu --help`:
  • ```
  • -o FILE Export scanned directory to FILE
  • -f FILE Import scanned directory from FILE
  • ```
  • You can start it with any directory you want, skip unwanted mounts, even delete files and folders directly from inside the program.
  • ----
  • After some tests: consecutive runs of `ncdu -o file` update the file, and pretty fast. A simple script that runs `ncdu -o file $1; ncdu -f file` should be quite usable.
#1: Initial revision by user avatar GeraldS‭ · 2024-07-11T06:54:03Z (4 months ago)
`ncdu` does that.

from `ncdu --help`:

```
  -o FILE                    Export scanned directory to FILE
  -f FILE                    Import scanned directory from FILE
```

You can start it with any directory you want, skip unwanted mounts, even delete files and folders directly from inside the program.