awk -F " " '{for(i=1;i<=NF;i++){if(length($i) < 8) print $i}}' nowcoder.txt
for i in $(cat nowcoder.txt); do
if [ ${#i} -lt 8 ]; then
echo ${i}
fi
done
temp=$(cat nowcoder.txt)
arr=(${temp[*]})
for i in ${arr[*]}; do
if [ ${#i} -lt 8 ]; then
echo ${i}
fi
done