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# 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``` |