Tips and tricks

Hugo

Shortcode in a code block

In order to document shortcode usage, it must be placed in a code block. Generally, hugo still parses it as a shortcode but this can be overridden using a comment block around the short code. For example:

{{% alert title="Note" %}}This is the documentation for the alert shortcode.{{% /alert %}}

{{%/* alert title="Note" */%}}Entered into code block with comments.{{%/* /alert */%}}

SSH

Remove SSH know_hosts

for Chrome app Secure Shell

When working in a closed network, there are times when the host identification will change. When that happens, attempts to connect using the Secure Shell app will fail with the following message:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
d6:be:12:7e:22:23:c3:e1:56:30:d6:cd:65:b7:ab:42.
Please contact your system administrator.
Add correct host key in /.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /.ssh/known_hosts:7
ECDSA host key for xxxxxxxxxxxxx.yyy.au has changed and you have requested strict checking.
Host key verification failed.
NaCl plugin exited with status code 255.
(R)econnect, (C)hoose another connection, or E(x)it?

This can only be fixed by removing the offending key. Make note of the number shown at the end of the line, Offending ECDSA key in /.ssh/known_hosts:7. That number depends on your system and is the index of the offending key.

• Open the JavaScript console, CTRL + Shift + J
• Enter term_.command.removeKnownHostByIndex(INDEX); into the console. Replace INDEX by the index of your offending key.
• Alternatively, you may clear all host keys with term_.command.removeAllKnownHosts();

from gaggl

Git

Update a submodule

To update a submodule to the latest commit available from the remote,

• Change to the submodule directory. cd submod_dr.
• Checkout master branch, git checkout master
• Pull, git pull.
• Done, so return to project root.
• Commit the update, git commit -am "Pulled a submodule update.

There might be other options but this usually works for me