[[ ]]
. Use a loop (or explicit *
instead of @
).ext=png
allowedExt=(jpg bmp png)
[[ "$ext" = "${allowedExt[@]}" ]] && echo "Extension is valid"
ext=png
allowedExt=(jpg bmp png)
for value in "${allowedExt[@]}"
do
"$ext" = "$value" ]] && echo "Extension is valid"
[[ done
Array expansions in [[ .. ]]
will implicitly concatenate into a single string, much like in assignments. The problematic code is equivalent to [ "$ext" = "jpg bmp png" ]
.
Instead, use a for
loop to iterate over values, and apply your condition to each.
Alternatively, if you do want to concatenate all the values in the array into a single string for your test, use "$*"
or "${array[*]}"
to make this explicit.
None.
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