sed 帶有變量
eval sed 's/$a/$b/' filename
sed "s/$a/$b/" filename
sed 's/'$a'/'$b'/' filename
D=$(date +%d) M=$(date +%b) Y=$(date +%Y) sed -i '/'"$D\/$M\/$Y"'/,$d' /var/ftp/pub/count.txt
sed 帶有變量
eval sed 's/$a/$b/' filename
sed "s/$a/$b/" filename
sed 's/'$a'/'$b'/' filename
D=$(date +%d) M=$(date +%b) Y=$(date +%Y) sed -i '/'"$D\/$M\/$Y"'/,$d' /var/ftp/pub/count.txt