Pattern: Malformed brace expansion in assignment
Issue: -
echo *.png {1..9} expands to all png files and numbers from 1 to 9, but var=*.png or var={1..9} will just assign the literal strings '*.png' and '{1..9}'.
To make the variable contain all png files or 1 through 9, use an array as demonstrated.
If you intended to assign these values as literals, quote them (e.g. var="*.png").
Example of incorrect code:
foo={1..9}
echo $fooExample of correct code:
foo=( {1..9} )
echo "${foo[@]}"