A directional shell
The syntax of petri is a bit different than normal shells because it uses ASCII art to define running graphs
#!/usr/bin/env petri \(diff @ @) ^ ^ | | \(ls /dev) -> replace_x --+-> replace_y --x-+ | | +-> replace_z --+ --- replace_x: sed 's:x:y:g' replace_y: sed 's:y:z:g' replace_z: sed 's:z:x:g'
This would be the equivalent of the bash file:
ls /dev | sed 's:x:y:g' > /tmp/temp_file diff <(sed 's:z:x:g' < /tmp/temp_file) <(sed 's:y:z:g' < /tmp/temp_file)
Originally I wanted to call it
dish but I found that too generic, and since dish is from time to time preceded with petri, I chose that.