Hosting Operations

Risk: safe

Find Directories Burning Inodes

Inode usage is high and you need to locate which directories contain the most regular files.

Command

find /lab/disk-inode-cleanup/var/cache/app -xdev -type f -printf '%h\n' | sort | uniq -c | sort -nr | head

Before you run this

Risk: safe. 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

Nothing changes. The command counts files by parent directory.

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.

Watch this command run

Example output from a temporary Linux lab

This example uses disposable sample files and sanitized output so you can inspect the shape of the result before touching a real system.

demo@lab:~$

$ df -ih /work/disk-inode-cleanup

Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/vda1        25G   19G  5G  80% /work
tmpfs            245K    14  245K    1% /run

$ find /work/disk-inode-cleanup/var/cache/app -xdev -type f -printf '%h\n' | sort | uniq -c | sort -nr | head

    120 /work/disk-inode-cleanup/var/cache/app/shards/a
     40 /work/disk-inode-cleanup/var/cache/app/shards/b

View reproducible demo details

This page shows the sanitized shell transcript and the setup steps needed to reproduce the example.

Lab setup steps

df -ih /lab/disk-inode-cleanup
find /lab/disk-inode-cleanup/var/cache/app -xdev -type f -printf '%h\n' | sort | uniq -c | sort -nr | head

next steps

Related commands

Hosting Operations Risk: safe

Summarize Cache File Ages

Cache cleanup is safer when you know whether files are stale or still active.

find /lab/disk-inode-cleanup/var/cache/app -xdev -type f -printf '%TY-%Tm-%Td\n' | sort | uniq -c

Hosting Operations Risk: safe

Rank Old Cleanup Candidates by Size

The oldest file is not always the file that buys back meaningful space.

find /lab/disk-inode-cleanup/var -xdev -type f -mtime +7 -printf '%s %TY-%Tm-%Td %p\n' | sort -nr | head

Hosting Operations Risk: safe

Review Log Files Before Cleanup

Before truncating logs, prove which log files are large and how old they are.

find /lab/disk-inode-cleanup/var/log -xdev -type f -printf '%10s %TY-%Tm-%Td %p\n' | sort -nr

Hosting Operations Risk: safe

Preview Old Temp Files Before Deleting

The safe version of cleanup is a candidate list first.

find /lab/disk-inode-cleanup/var/tmp/uploads -xdev -type f -mtime +7 -printf '%TY-%Tm-%Td %10s %p\n' | sort

Hosting Operations Risk: safe

List Empty Directories as Cleanup Candidates

Empty directories are low-risk candidates, but they still deserve a preview.

find /lab/disk-inode-cleanup/var/cache/app -xdev -depth -type d -empty -print

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.

Find Directories Burning Inodes

Before you run this

Expected output

System impact

When to use it

When not to use it

Example output from a temporary Linux lab

Lab setup steps

Related commands

Summarize Cache File Ages

Rank Old Cleanup Candidates by Size

Review Log Files Before Cleanup

Preview Old Temp Files Before Deleting

List Empty Directories as Cleanup Candidates

Useful for