Check for duplicates in your $PATH variable

path_check.bash

#!/usr/bin/env bash

RAW_PATH_TMP=`mktemp`
CLEAN_PATH_TMP=`mktemp`

echo $PATH | sed 's/:/\n/g' | sort > $RAW_PATH_TMP
cat $RAW_PATH_TMP | uniq > $CLEAN_PATH_TMP

declare -i LINES=$(( `diff $RAW_PATH_TMP $CLEAN_PATH_TMP | wc -l` / 2 ))

if [ $LINES != 0 ]
then
    echo -e "The following $LINES paths are duplicated in your PATH variable:"

    diff -U 0  $RAW_PATH_TMP $CLEAN_PATH_TMP | sed -n '3,$p' | awk 'NR %2 == 0'
else
    echo "No duplicates found in path"
fi

rm $RAW_PATH_TMP $CLEAN_PATH_TMP

exit $LINES