I'm wondering how I would go about creating my own bash script to ssh to a server. I know it's lazy, but I would ideally want not to have to type out:
ssh username@server
And just have my own two letter command instead (i.e. no file extension, and executable from any directory).
Any help would be much appreciated. If it helps with specifying file paths etc, I am using Mac OS X.
You can set configs for ssh in file ~/.ssh/config:
Host dev
HostName mydom.example.com
User myname
Then, just type
$> ssh dev
And you're done. Also, you can add your public key to the file ~/.ssh/authorized_keys so you won't get prompted for your password every time you want to connect via ssh.
Use an alias.
For example: alias sv='ssh user@hostname', then you can simply type sv.
Be sure to put a copy of the aliases in your profile, otherwise they will disappear at the end of your session.
You can use ssh-argv0 to avoid typing ssh.
To do this, you need to create a link to ssh-argv0 with the name of the host you want to connect, including the user if needed. Then you can execute that link, and ssh will connect you to the host of the link name.
Setup the link:
ln -s /usr/bin/ssh-argv0 ~/bin/my-server
/usr/bin/ssh-argv0 is the path of ssh-argv0 on my system, yours could be different, check with which ssh-argv0~/bin/ to be able to execute it from any directory (in OS X you may need to add ~/bin/ manually to your path on .bash_profile)my-server is the name of my server, and if needed to set the user, it would be user@my-serverExecute it:
my-server
You can also combine this with mogeb answer to configure your server connection, so that you can call it with a shorter name, and avoid to include the user even if it is different than on the local system.
Host serv
HostName my-server
User my-user
Port 22
then set a link to ssh-argv0 with the name serv, and connect to it with
serv
ssh-argv0 is a Debian extension replacing a capability of SSH that was removed a long time ago. it is not available on MacOS but it is easy to roll your own.you could create an alias like this:
alias ss="ssh username@server" and write it into your .bash_profile. ".bash_profile" is a hidden file is located in your home directory. If .bash_profile doesn't exist yet (check by typing ls -a in your home directory), you can create it yourself.
The bash_profile file will be read and executed every time you open a new shell.
