Script to create new files with content recursively

Question

I have a tree of folders where every folder contains between two and three jpg files. As I have plenty folders, I would like to develop a script to create recursively an Inkscape file in every folder containing the jpg files in it, and renaming the svg file with the name of the containing folder. How may I achieve this?

Answer 1

Find directories with JPG files and run inkscape on them:

find . -type d \
    -exec sh -c 'set -- "$1"/*.jpg; [ -e "$1" ]' sh {} ';' \
    -exec sh -c 'inkscape --export-plain-svg="$1/${1##*/}.svg" "$1"/*.jpg' sh {} ';'

This will look for directories under the current directory. If the directory contains at least one .jpg file, inkscape is invoked on this directory, picking up all .jpg files from within it and exporting an SVG file into it, with the name of the directory as its filename.

The output filename is constructed as $1/${1##*/}.svg where $1 is the first command line argument to the sh -c script (this is the path to the directory with the .jpg files), and where ${1##*/} will strip the path from the directory and leave just the directory name.

This is untested in as far as I don't have inkscape and I'm not familiar with the program (apart from reading its manual).

Given the following directory structure:

$ tree
.
|-- dirA
|   `-- 1
|       |-- file.jpg
|       |-- image.jpg
|       `-- picture.jpg
`-- dirB
    |-- 2
    |   |-- file.jpg
    |   |-- image.jpg
    |   `-- picture.jpg
    |-- 3
    |   |-- file.jpg
    |   `-- image.jpg
    `-- 4
        |-- file.jpg
        `-- image.jpg

6 directories, 10 files

This is what would have been executed:

inkscape --export-plain-svg=./dirA/1/1.svg ./dirA/1/file.jpg ./dirA/1/image.jpg ./dirA/1/picture.jpg
inkscape --export-plain-svg=./dirB/2/2.svg ./dirB/2/file.jpg ./dirB/2/image.jpg ./dirB/2/picture.jpg
inkscape --export-plain-svg=./dirB/3/3.svg ./dirB/3/file.jpg ./dirB/3/image.jpg
inkscape --export-plain-svg=./dirB/4/4.svg ./dirB/4/file.jpg ./dirB/4/image.jpg