The zfs list output can be customized by using the –o, –t, and –H options.
You can customize property value output by using the –o option and a comma-separated list of desired properties. You can supply any dataset property as a valid argument. For a list of all supported dataset properties, see Introducing ZFS Properties. In addition to the properties defined, the –o option list can also contain the literal name to indicate that the output should include the name of the dataset.
The following example uses zfs list to display the dataset name, along with the share.nfs and mountpoint property values.
# zfs list -r -o name,share.nfs,mountpoint users/home NAME NFS MOUNTPOINT users/home on /users/home users/home/cindy on /users/home/cindy users/home/gina on /users/home/gina users/home/gina/projects on /users/home/gina/projects users/home/gina/projects/fs1 on /users/home/gina/projects/fs1 users/home/gina/projects/fs2 on /users/home/gina/projects/fs2 users/home/mark on /users/home/mark users/home/neil on /users/home/neil
You can use the –t option to specify the types of datasets to display. The valid types are described in the following table.
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The –t options takes a comma-separated list of the types of datasets to be displayed. The following example uses the –t and –o options simultaneously to show the name and used property for all file systems:
# zfs list -r -t filesystem -o name,used users/home NAME USED users/home 4.00G users/home/cindy 548K users/home/gina 2.00G users/home/gina/projects 2.00G users/home/gina/projects/fs1 1.00G users/home/gina/projects/fs2 1.00G users/home/mark 1.00G users/home/neil 1.00G
You can use the –H option to omit the zfs list header from the generated output. With the –H option, all white space is replaced by the Tab character. This option can be useful when you need parseable output, for example, when scripting. The following example shows the output generated from using the zfs list command with the –H option:
# zfs list -r -H -o name users/home users/home users/home/cindy users/home/gina users/home/gina/projects users/home/gina/projects/fs1 users/home/gina/projects/fs2 users/home/mark users/home/neil