File System Experiment

1. go run main.go
2. px aux | grep main.go
3. Grab pid from ^
4. pgrep -P [pid]
5. Grab child pid from ^
6. lsof -p [pid]
7. Sort it: lsof -p [pid] | sort -n -r -k7
8. rm output.txt
9. Watch the file count continue to go up from previous step because the file descriptor is still open.

Sort all file handlers by size:

lsof | sort -n -r -k7 | head -10