Sometimes a command is so long that it doesn't fit on one line. ps usually truncates it but sometimes you want it to wrap instead so you can see the full command.
The proper method is to use the -w option twice. From the man page:

-w     Wide output.  Use this option twice for unlimited wid...

Today it felt like something was running slowly so I opened htop and saw a command called exe was using quite high CPU. But what is exe? It's a very suspicious looking name.

screen-2024-04-01-12-03-09

The PID for exe is 9645, so I can check where the actual executable is by looking in /proc.

$ ls -l /proc/964...