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====== Linux - Sudo - Sudoers - Log Sudo Command Input/Output ======

The **log_input** and **log_output** parameters enable sudo to run a command in pseudo-tty and log all user input and all output sent to the screen receptively.

  * The default I/O log directory is **/var/log/sudo-io**, and if there is a session sequence number, it is stored in this directory.

A custom directory can be specified through the **iolog_dir** parameter.

<code>
Defaults   log_input, log_output
</code>

<WRAP info>
**NOTE:**  There are some escape sequences supported such as **%{seq}** which expands to a monotonically increasing base-36 sequence number, such as 000001, where every two digits are used to form a new directory, e.g. 00/00/01 as in the example below: <code>

cd /var/log/sudo-io/
ls
cd  00/00/01
ls
cat log
</code>

</WRAP>