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Full Discussion: Compare bash arrays issue
Top Forums UNIX for Beginners Questions & Answers Compare bash arrays issue Post 303038735 by trexthurman on Thursday 12th of September 2019 11:40:46 AM
Old 09-12-2019
Here is the code I'm working on. After comparing both arrays, if multiple differences are detected between arr1 and arr2. I should be able to send an email for each difference found. Below, looks like I'm still treating the scalar as an array? Is there a way to make the scalar into array after comparing so I can access the elements individually?

Code:
arr1=( "macOS Mojave" "iTunes" )
cd /Volumes
arr2=( * )

IFS=$'\n'
DIFF=`echo "${arr1[*]}"$'\n'"${arr2[*]}" | sort | uniq -u`
VOLCOUNT=`printf "%s\n" "${arr1[@]}" "${arr2[@]}" | sort | uniq -u | wc -l`
if [ "$VOLCOUNT" -gt "$COUNT" ]; then
        for x in "${DIFF[@]}"
        do
                echo -e "To: ${TO}\nSubject: Alert: ${SUBJECT}$x \n\n$SIGN" | $MAIL -a gmail ${TO}
        done
else
        >/dev/null 2>&1
fi
unset $IFS
exit 0


Last edited by Scrutinizer; 09-12-2019 at 02:41 PM.. Reason: code tags
 

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ARRAY_UINTERSECT(3)							 1						       ARRAY_UINTERSECT(3)

array_uintersect - Computes the intersection of arrays, compares data by a callback function

SYNOPSIS
array array_uintersect (array $array1, array $array2, [array $...], callable $value_compare_func) DESCRIPTION
Computes the intersection of arrays, compares data by a callback function. PARAMETERS
o $array1 - The first array. o $array2 - The second array. o $value_compare_func - The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second. int callback (mixed $a, mixed $b) RETURN VALUES
Returns an array containing all the values of $array1 that are present in all the arguments. EXAMPLES
Example #1 array_uintersect(3) example <?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red"); print_r(array_uintersect($array1, $array2, "strcasecmp")); ?> The above example will output: Array ( [a] => green [b] => brown [0] => red ) SEE ALSO
array_intersect(3), array_intersect_assoc(3), array_uintersect_assoc(3), array_uintersect_uassoc(3). PHP Documentation Group ARRAY_UINTERSECT(3)
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