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Adding to PATH in idempotent way, that is, without repetition.
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| # https://unix.stackexchange.com/a/124447 | |
| add_to_path() { | |
| case ":${PATH:=$1}:" in *:"$1":*) ;; *) PATH="$1:$PATH" ;; esac; | |
| } | |
| # Example | |
| add_to_path $HOME/bin/julia-1.6.1/bin |
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