ワンライナーで玉川ダムの貯水率をCSVに変換

apt install libxml2-utils
apt install html-xml-utils
apt install w3m

cat tamagawa.html | hxnormalize -x | hxselect 'html > body > div > div > table' | w3m -dump -cols 2000 -T 'text/html' | sed -e 's/^\s\+//;s/ \+/,/g'

curl -sS "http://183.176.244.72/kawabou-mng/customizeMyMenuKeika.do?GID=05-5101&userId=U1001&myMenuId=U1001_MMENU003&PG=1&KTM=3" | hxnormalize -x | hxselect 'html > body > div > div > table' | w3m -dump -cols 2000 -T 'text/html' | awk 'NF==7{date=$1;$1=""}{print date,$0}' | awk '$1=$1' OFS=,