20170728_100本ノック

gistfile1.txt

10)
wc hightemp.txt

11)
sed -i 's/\t/ /g' ./hightemp.txt

12)
cat hightemp.txt | while read line; do echo $line | cut -d ' ' -f1 >> col1.txt; done
cat hightemp.txt | while read line; do echo $line | cut -d ' ' -f2 >> col2.txt; done

13)
paste col1.txt col2.txt

14)
head -10 hightemp.txt

15)
tail -10 hightemp.txt

16)
split -3 hightemp.txt

17)
cat col1.txt | sort | uniq