<stránka

	xmlns="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/strana"

	xmlns:m="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/makro">

	<nadpis>Reading fstab</nadpis>

	<perex>converting /etc/fstab or /etc/mtab to relational data</perex>

	<m:pořadí-příkladu>00200</m:pořadí-příkladu>

	<text xmlns="http://www.w3.org/1999/xhtml">

		<p>

			Using command <code>relpipe-in-fstab</code> we can convert the <code>/etc/fstab</code> or <code>/etc/mtab</code> to relational data 

		</p>

		<m:pre jazyk="bash"><![CDATA[relpipe-in-fstab | relpipe-out-tabular]]></m:pre>

		<p>

			and see them as a nice table:

		</p>

		<pre><![CDATA[fstab:

 ╭─────────────────┬──────────────────────────────────────┬──────────────────────┬───────────────┬───────────────────────────────────────┬────────────────┬────────────────╮

 │ scheme (string) │ device                      (string) │ mount_point (string) │ type (string) │ options                      (string) │ dump (integer) │ pass (integer) │

 ├─────────────────┼──────────────────────────────────────┼──────────────────────┼───────────────┼───────────────────────────────────────┼────────────────┼────────────────┤

 │ UUID            │ 29758270-fd25-4a6c-a7bb-9a18302816af │ /                    │ ext4          │ relatime,user_xattr,errors=remount-ro │              0 │              1 │

 │                 │ /dev/sr0                             │ /media/cdrom0        │ udf,iso9660   │ user,noauto                           │              0 │              0 │

 │                 │ /dev/sde                             │ /mnt/data            │ ext4          │ relatime,user_xattr,errors=remount-ro │              0 │              2 │

 │ UUID            │ a2b5f230-a795-4f6f-a39b-9b57686c86d5 │ /home                │ btrfs         │ relatime                              │              0 │              2 │

 │                 │ /dev/mapper/sdf_crypt                │ /mnt/private         │ xfs           │ relatime                              │              0 │              2 │

 ╰─────────────────┴──────────────────────────────────────┴──────────────────────┴───────────────┴───────────────────────────────────────┴────────────────┴────────────────╯

Record count: 5]]></pre>

		<p>And we can do the same also with a remote <code>fstab</code> or <code>mtab</code>; just by adding <code>ssh</code> to the pipeline:</p>

		<m:pre jazyk="bash"><![CDATA[ssh example.com cat /etc/mtab | relpipe-in-fstab | relpipe-out-tabular]]></m:pre>

		<p>

			The <code>cat</code> runs remotely. The <code>relpipe-in-fstab</code> and <code>relpipe-out-tabular</code> run on our machine.

		</p>

		<p>

			n.b. the <code>relpipe-in-fstab</code> reads the <code>/etc/fstab</code> if executed on TTY. Otherwise, it reads the STDIN.

		</p>

	</text>

</stránka>