Ssh – Get hostnames into ssh tab-completion (with minimal editing)

bashcommand-line-interfacessh

I know I could get a list of hostnames into bash tab-completion of ssh by adding them to /etc/hosts, but since they are on DHCP, it's kinda bad practice.

Does anyone know another DHCP-aware way, that doesn't force me to interfere with Ubuntu too much?

(Global solution preferred)

Best Answer

The simplest way is to simply disable the HashKnownHosts option globally or in your personal .ssh/config file. If you disable that, and also have the bash-completion package installed, then any host you connect to will be available for auto-completion after you have connected the first time.

You could use ssh-keyscan to build up a nice big list to pre-populate your known_hosts file.

Related Solutions

Linux – SCP filename tab completion

Which shell are you using? If you are using bash you may need to enable "advanced" completions in bash...

if [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

In your ~/.bashrc

On OSX you can do:

$ sudo port install bash-completion

To your ~/.profile add:

if [ -f /opt/local/etc/bash_completion ]; then
    . /opt/local/etc/bash_completion
fi

Bash – Stop bash tab completion from thinking I want to cd into .svn directories

I can give you two options. Either of which can be placed in your ~/.bash_profile.

Bash uses a variable $FIGNORE which defines any suffixes that auto-completion will ignore. There seems to be a catch though, in that it prefixes any value with *.. So a setting of:
```
export FIGNORE=.svn
```
Will only ignore directories that have something before the period. And:
```
export FIGNORE=svn
```
Will ignore .svn directories and anything else that ends in .svn.

Caveat emptor.
You can prevent all hidden files and directories from being included in auto-completion:
```
bind 'set match-hidden-files off'
```
But you might not find this suitable.

Best Answer

Related Solutions

Linux – SCP filename tab completion

Bash – Stop bash tab completion from thinking I want to cd into .svn directories

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