System: #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08)
type in from command line "sage" error says, "bash: sage: command not found" How can I start sage. Thanks.
Installing Sage just installs Sage, it does not automatically make the
sage command point to Sage.
So either change directory to where sage is installed and run
./sage as @eric_g suggests,
or take one of the following steps.
use an alias by adding this line in your
.bash_profile settings file:
or add a symbolic link in a place that is in your PATH, say
/usr/local/bin, by running the command
$ sudo ln -s /path/to/sage /usr/local/bin
(you would replace
/path/to/sage by the actual path to the
sage executable you have installed).
A related trick: GAP, Singular, etc., are bundled with Sage. There is a command
to create creating symbolic links for all of them in a chosen directory. To create
the symbolic links in
/usr/local/bin, run this command:
$ sudo sage -c "install_scripts('/usr/local/bin')