Show the filesystem backing a path
Build a paste-ready command, then review its compatibility and effects before running it.
Complete required fields to copy the generated command.
read-onlyno known side effects Compatibility
LinuxVerified for Linux using posix, bash, zsh syntax.
Operational knowledgereview due 2027-01-20
Requirementsfindmntfindmnt must be installed and available on PATH.
Version supportfindmnt Current supported releasesVerified for linux using posix, bash, zsh syntax; consult compatibility notes for platform-specific differences.
Expected signalsTARGET SOURCE FSTYPE OPTIONSRepresentative successful output; values vary with the selected target and system state.
Known errorsfindmnt: command not foundfindmnt is missing or is not available on PATH.
Verifyfindmnt -T {{path}}The output matches the expected target and exits without an error.Rollback noteNot required: this command is read-only and does not change system state.
Command breakdown
01findmntCommandRuns the findmnt stage of this one-liner.
02-TOptionConfigures findmnt with the -T option.
03<path>ParameterA value supplied in the Fill parameters section.
Example input
findmnt -T /var/log
Example output
TARGET SOURCE FSTYPE OPTIONS
/ /dev/sda2 ext4 rw,relatime
Illustrative output — exact values vary by system and data.
Official sources