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export PATH=$HOME/bin:./node_modules/.bin:$PATH
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The easiest way to add a new path to $PATH (the environment variable) is with the export command. In this example we’ll add “~/opt/bin” to the user PATH with export:
export PATH=$PATH:~/opt/bin
You can run that directly from the command line, then check the $PATH with echo to show that it has been added like so:
echo $PATH
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export PATH=$PATH:/new/dir/location1
export PATH=$PATH:/new/dir1:/dir2:/dir/path/no3