acl_get_tag_type - Linux
Overview
acl_get_tag_type retrieves tag type info from ext4/ext3 filesystem using the ioctl() system call.
Syntax
acl_get_tag_type [-h] [-t TYPE] [-s] [-a] [-f] device path
Options/Flags
-h,--help: Display help information.-t,--type: Specify the tag type to query.-s,--super: Query superblock for tag type info.-a,--acl: Query ACL block for tag type info.-f,--force: Attempt to get tag type info even if ACL block isn’t present.
Examples
Get tag type info for a file
acl_get_tag_type -t file /dev/sda1 /path/to/file
Get tag type info from the superblock
acl_get_tag_type -s /dev/sda1
Force tag type info retrieval
acl_get_tag_type -f /dev/sda1 /path/to/file
Common Issues
- If the ACL block is not present, the command will fail unless the
-foption is used. - The command requires root privileges to run.
Integration
acl_get_tag_type can be used in conjunction with other tools for managing extended attributes and ACLs on ext4/ext3 filesystems. For example, it can be used to:
- Verify the tag type of a file before setting or modifying its extended attributes.
- Determine whether a file has an ACL block.
- Troubleshoot ACL-related issues.
Related Commands
getfattrsetfattrchattr