WP-ShkShell provides a terminal-like box for embedding terminal commands within pages or posts. It also support multi-lines, multi-commands and has syntax hightlight.
The code is a modification of WP-Terminal (https://wordpress.org/extend/plugins/wp-terminal/).
Usage
Wrap terminal blocks with <pre lang="shell" prompt="$"> and </pre>.
Example 1: Default prompt
<pre lang="shell" prompt="$">
ls -a
</pre>
Example 2: Customized prompt
<pre lang="shell" prompt="#">
ls -a
</pre>
Example 3: Another customized prompt
<pre lang="shell" prompt="user@machine$">
ls -a
</pre>
Example 4: Comments
<pre lang="shell" prompt="user@machine$">
ls -a
# will also list hidden files
</pre>
Example 5: Multiline commands
<pre lang="shell">
ls
<br>ls -a
</pre>
Example 6: Multiline lines, multiple commands
<pre lang="shell">
ls
file1 file2 file3
<br>ls -A
.file0 file1 file2 file3
</pre>
This plugin is available for download to be used on your WordPress self-hosted installation.