Is there a way to use the knife tool or something similar on paths?
I'd like to be able to cut a bunch of lines without using the Scissor tool and having to hit each on individually. The way the Knife tool works on closed shapes would be perfect if it worked on paths also.
Situation: Overhead CAD drawing output of long conveyors where I'd like to be able to cut out 75% of the length quickly.
Have you tried using a new path across (above all) and Object>Path>Divide Objects Below? Do both ends and then select and delete the middle.
Same results--divides a closed object but not the lines/paths. See below.
Wholesale path cuting in Illustrator can be elusive.
When faced with a challenge like yours, depending on the existing construct and output intent, one or the other solution may be better for the case at hand:
You may use the Shape Builder tool (in case your version of Illustrator has it).
Oh yes, as Kurt says, the Shape Bulder is another potential solution
Draw a cutting path across the collection of paths as described in the Divide Objects Below suggestion. Then, with all selected, choose the Shape Builder tool and Alt/Opt-Drag over the unwanted path segments.
BOOM! Thank you!