Zap a deleted file handle holding into disk space

lsof.sh

# These commands will help you find and truncate a deleted file handle that is holding onto disk space. Why do my servers
# always fuck with me during the holidays?

# Run this to find files that have one link, which should equal a (deleted) file
$ lsof -nP +L1

# Now, search through /proc to find these deleted files
$ find /proc/*/fd -ls | grep '(deleted)'
/proc/5225/fd/3 -> /var/log/ceph/ceph-mon.st1.log.1\ (deleted)

# Truncate the file. Win free disk space. Woohoo!
$ : > "/proc/$pid/fd/$fd"
$ df -h

# go get a warm beverage you linux wrangling superstar.