Value FILE_SYSTEM (\S+)
Value SIZE (\S+)
Value USED (\S+)
Value AVAIL (\S+)
Value USE_PERCENT (\S+)
Value MOUNTED_ON (\S+)

Start
  ^Filesystem.*Mounted on$$ -> Data
  ^\s+$$
  ^$$
  ^.* -> Error "LINE NOT FOUND"  
  
Data
  ^${FILE_SYSTEM}\s+${SIZE}\s+${USED}\s+${AVAIL}\s+${USE_PERCENT}\s+${MOUNTED_ON} -> Record
  ^\s+$$
  ^$$
  ^.* -> Error "LINE NOT FOUND"
  
EOF  
