I wrote a bash script to add to my $PYTHONPATH. My .sh file has the following:
sudo echo export PYTHONPATH=$PYTHONPATH:/path/to/new/python/module >> ~/.bashrc
What I want to be added to my .bashrc is:
PYTHONPATH=$PYTHONPATH:/path/to/new/python/module
However I can only get it to add:
PYTHONPATH=/all/other/python/modules/already/on/path:/path/to/new/python/module
I don't want the actual $PYTHONPATH value to be added to my .bashrc, just the variable name. Please help!
Use single-quotes:
$ echo 'export PYTHONPATH=$PYTHONPATH:/path/to/new/python/module' >> .bashrc
$ cat .bashrc
export PYTHONPATH=$PYTHONPATH:/path/to/new/python/module
The shell does not perform variable expansion on single-quoted strings.
Note also that, if you are writing to ~/.bashrc, you should not need sudo. A user should own his own ~/.bashrc. Further, as written, the sudo command only operated on echo. The redirection >~/.bashrc is done with the user's level of permission. Since echo has no need of and gets no benefit from sudo, sudo is a practically a no-op. [Hat tip: tripleee]
sudo doesn't do anything here; if it did, you could create a file which the user cannot later modify. Luckily, here, the sudo is a complete no-op, because the redirection causes the user's shell to create the file before sudo echo starts executing.
try
echo 'export PYTHONPATH=/path/to/caff-dir/python'
Also, you may need to run following:
pip install -r requirement.txt
