The above $path and $PATH kept working well until I tried to migrate them to my M1 running macOS. That's useful in that it makes it easier to add remove components or loop over them. That's a very neat feature which can be propagated to other variables. ZSH allows you to use special mapping of environment variables. Shell that it should not add anything to $path if it's there already. The incantation typeset -U path, where the -U stands for unique, tells the The shell to discard duplicates from both $PATH and $path The line typeset -U PATH path, where the -U stands for unique, instructs Thus, $path comes in handy and there are already many mentioning/talking about Over time, $PATH can become quite messy, including a lot of duplicate entries. Tied to $PATH, meaning that you can either change $PATH using the exportĬonvention (changing a scalar string) or change $path (lowercase, an array) and makes itĮasier to append, prepend, and even insert new stuff, but that zsh provides an array, $path which is
The only difficulty that had baffled me was zsh's way of setting $PATH. zsh can neither find nor execute custom user scripts in ~/bin.If I'm on macOS, prepare all that is needed for MacPorts and macOS Nodejs. The $KERNEL_NAME and case statement is there for zsh to detect which OS I'm on. Pretty well on all my Linux/*BSD machines. PATH:/opt/local/bin:/opt/local/sbin: $PATHĪs you can see, I prefer to use my own Python and Nodejs under my $HOME while # user installed node as default node export PATH= " $HOME/node/node-v16.0.0- $-圆4 "/bin: $PATH export NODE_MIRROR= # user compiled python as default python export PATH= $HOME/python/bin: $PATH export PYTHONPATH= $HOME/python/ # Environment variables # export EDITOR=nvimĮxport KERNEL_NAME= $( uname | tr ' ' ' ' ) # remove duplicat entries from $PATH # zsh uses $path array along with $PATH typeset -U PATH path
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