ChownShift

Shift UIDs,GIDs of directories or files by a specified amount

Features

• Optional recursion mode
• Supports hardlinks, symlinks without dereferencing them
• Preserves file modes/permissions by default (including setuid)
• Support for preserving file capability sets (capability.security)

Example

# ls -la
drwxr-xr-x 2 user user 4096 Oct  9 15:08 .
drwxr-xr-x 3 user user 4096 Oct  9 15:16 ..
-rw-r--r-- 1 2000 2000    0 Oct  9 15:08 testfile
drwxr-xr-x 2 2000 2000 4096 Oct  9 15:08 testdirectory
# chownshift -1 . -R # Shift UIDs and GIDs by -1
# ls -la
drwxr-xr-x 2 user user 4096 Oct  9 15:08 .
drwxr-xr-x 3 user user 4096 Oct  9 15:16 ..
-rw-r--r-- 1 1999 1999    0 Oct  9 15:08 testfile
drwxr-xr-x 2 1999 1999 4096 Oct  9 15:08 testdirectory

Usage

Usage: chownshift <difference> <path> [Optional Arguments]

Mandatory Arguments:
  <difference>:        A positive or negative integer denoting the amount of UIDs and GIDs
                       the files in <path> are to be shifted by
  <path>:              The target path to a file or directory

Optional Arguments:
  -R, --recursive          Recurse through the provided path
  -v, --verbose            Verbose output
  -x, --xattr              Preserve security capability sets (security.capability extended file attribute)
      --no-permissions     Do not preserve mode permission bits
      --dry-run            Simulate only
  -h, --help               Show this message

Exit codes:
  0 - Success
  1 - Error
  2 - Argument error