Run a command across files

Running a command across multiple files can be achieved using the find command and its -exec flag.

As an example, this command finds all SVG files within the current directory (see -maxdepth) and uses Inkscape to export each SVG file to a PNG:

$ find *.svg -maxdepth 1 -type f -exec inkscape --export-type=png --export-dpi=300 {} \;

{} is the file name returned by the find command and -exec is the command to run against every file, with \; used to denote the end of the -exec command.