# Ubuntu – How to change the value of ~

command linehome-directory

by default ~ is given the value of /home/username/

i.e. If I use the command cd ~ it goes to the directory /home/username/

How to change the value of it to some other file such as /home/username/filename?

I do know that this can be dangerous, I am working on a CTF though, so it is fine.

• The tilde (~) is interpreted by your shell, as a short form of $HOME. Try the following commands: echo ~ HOME=foo echo ~  This should first print your real home directory and afterwards "foo", as you set$HOME to that.
The default value of $HOME comes from you system configuration. Use getent passwd to list all known users and their home directories. Depending on your system configuration those entries might come from /etc/passwd or any remote directory service. If you only want to temporarily redefine your home directory, just set another $HOME.
If you permanently want to change it you have to change the passwd entry, e.g. by manually editing /etc/passwd`.