# Collection of Bash code snippets, mostly one liners, to ease file handling among other things | |||||
Collection of notes | |||||
#### rename files to reverse order | |||||
```N=1; ls -tr -1 *.jpg | tac | while read file; do mv "$file" "$N".jpg; N=$((N+1)); done``` | |||||
#### rotate all images using imagemagick | |||||
```mogrify -rotate 180 *.jpg``` | |||||
```mogrify``` overwrites existing images which is what makes it different from ```convert``` |