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Note: in the commands below, the initial $ in each line represents the shell prompt. Don't type it. Just type what follows. If your new Sage is at /home/you/sagemath, make it known to the system with the command: $ sudo ln -sf /home/you/sagemath/sage /usr/local/bin


This will work providing /usr/local/bin is in your PATH. To make sure of that, try:

$echo$PATH


To know which Sage starts and whether it is a symbolic link and what it links to:

$which sage$ ls -halF which sage


Note: in the commands below, do not type the initial $ in each line line, which represents the shell prompt. Don't type it. Just type what follows. If your new Sage is at /home/you/sagemath, make it known to the system with the command: $ sudo ln -sf /home/you/sagemath/sage /usr/local/bin


This will work providing /usr/local/bin is in your PATH. To make sure of that, try:

$echo$PATH


To know which Sage starts and whether it is a symbolic link and what it links to:

$which sage$ ls -halF which sage