My /home/myusername/ directory is provided through a network, and looks exactly the same on my Linux machine and my Mac Mini. I'd like to add to PATH a directory of Mac-specific software in my home, e.g. /home/myusername/SW/bin_mac/ and have this happen only when I'm doing command line stuff on the Mac, and not have PATH contain this when on Linux. If I edit .bashrc (or tcsh's equivalent) it'll affect PATH in both cases. What are some tricks to do this?
Test the output of
uname; it will be
Darwin on OS X and
Linux on Linux.
if [[ $(uname) == Darwin ]]; then export PATH="$HOME/SW/bin_mac:$PATH" fi
Alternately, you could just add an appropriate directory on each machine, which will be useful if you find yourself needing a separate Linux
bin directory as well in the future.
ln -s your
bin_Darwin; then you can create a
bin_Linux directory in the future if you need it, and it'll just work.
(You could also test
$HOSTTYPE, which is set by
bash, but it contains more information than you're likely to need.)