grep/awk/sed的多条件查询

# cat gt

one two three

four five six

one two

one seven three

# grep one three gt

grep: three: No such file or directory

gt:one two three

gt:one two

gt:one seven three

截取同时出现one和three的行，结果应该是：

one two three

one seven three

1. 用grep

cat gt | grep one | grep three

2. 用awk

awk '/one/&&/three/' gt

3. 用sed

sed -ne '/one/{/three/p}' gt

完毕