Hosting Operations
Read-only, can be slowFind Directories Burning Inodes
Inode usage is high and you need to locate which directories contain the most regular files.
Command
find /var/cache -xdev -type f -printf '%h\n' 2>/dev/null | sort | uniq -c | sort -nr | headBefore you run this
System impact: Read-only. Can create load on large logs, directories, filesystems, or process tables.
When not to use it: Do not assume the largest count is safe to delete; identify the application owner and cache semantics first.
Expected output
A count of regular files grouped by parent directory, sorted highest first.
System impact
Read-only, can be slow. Nothing changes. The command counts files by parent directory.
May require elevated permissions on protected paths or service-owned files.
Scope this to the smallest useful path or service on busy systems.
Recovery / rollback: no state is changed.
When to use it
Use when df -ih is high and large-file searches do not explain write failures.
When not to use it
Do not assume the largest count is safe to delete; identify the application owner and cache semantics first.
next steps
Related commands
Summarize Cache File Ages
Cache cleanup is safer when you know whether files are stale or still active.
find /var/cache -xdev -type f -printf '%TY-%Tm-%Td\n' 2>/dev/null | sort | uniq -c
Rank Old Cleanup Candidates by Size
The oldest file is not always the file that buys back meaningful space.
find /var -xdev -type f -mtime +7 -printf '%s %TY-%Tm-%Td %p\n' 2>/dev/null | sort -nr | head
Review Log Files Before Cleanup
Before truncating logs, prove which log files are large and how old they are.
find /var/log -xdev -type f -printf '%10s %TY-%Tm-%Td %p\n' 2>/dev/null | sort -nr | head -50
Preview Old Temp Files Before Deleting
The safe version of cleanup is a candidate list first.
find /var/tmp/uploads -xdev -type f -mtime +7 -printf '%TY-%Tm-%Td %10s %p\n' 2>/dev/null | sort
List Empty Directories as Cleanup Candidates
Empty directories are low-risk candidates, but they still deserve a preview.
find /var/cache -xdev -depth -type d -empty -print 2>/dev/null
Study mapping
Use this as independent command practice: read the notes, predict the output, then compare it with the example before using a real shell.
Independent study support only. No affiliation, endorsement, exam dumps, or real exam questions.