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sethdavis512/remove-duplicate-paths.sh

Created May 7, 2017 18:42
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Remove duplicate paths from $PATH
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remove-duplicate-paths.sh
# Taken from https://unix.stackexchange.com/questions/40749/remove-duplicate-path-entries-with-awk-command
if [ -n "$PATH" ]; then
old_PATH=$PATH:; PATH=
while [ -n "$old_PATH" ]; do
x=${old_PATH%%:*} # the first remaining entry
case $PATH: in
*:"$x":*) ;; # already there
*) PATH=$PATH:$x;; # not there yet
esac
old_PATH=${old_PATH#*:}
done
PATH=${PATH#:}
unset old_PATH x
fi
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