IP取得问题

jason680

回复 9# 关阴月飞

don't forget ...

# as like as grep
$ perl -lane 'print $1 if(m/^(\d+)/)' FILE

# as like as sed
$ perl -lape 's/^(\d+).*/\1/' FILE


$ sed -r 's/^([0-9]+).*/\1/' FILE

$ grep -oP "^\d+" FILE
   

yestreenstars

回复 9# 关阴月飞

牛！
学习了！
求工作！
   

reyleon

回复 11# jason680


牛！
学习了！
求工作！

tasteoftime_90

awk '{print $1}' A.txt | cut -d . -f 1 回复 1# craig_2008