In Linux a discrepancy between
du can occur when a file is
deleted but remains in use by a process. This is because df reports file
system usage and du reports on directory contents - when a file is
deleted it is no longer reported as part of the directory but until the
file is deleted the space is still used by the file system.
115 lsof -n|grep deleted 116 lsof -n 117 ps aux|grep pams 118 cd /proc/31131 119 ls 120 cd fd 121 ls 122 ls -l 123 tail -f 7 124 echo hello >7 125 tail -f 7 126 df -h 127 sync 128 df -h 129 kill -USR1 31131 130 sync 131 df -h