python 使用sys.stdin和fileinput读入标准输入的方法

[root@c6-ansible-20 script]# cat demo02.py #! /usr/bin/env pythonfrom __future__ import print_functionimport sysfor line in sys.stdin: print(line,end="")

cat /etc/passwd|python demo02.pypython demo02.py </etc/passwd

[root@c6-ansible-20 script]# cat demo04.py #! /usr/bin/env pythonfrom __future__ import print_functionimport fileinputfor line in fileinput.input(): print(line,end='')

python demo04.py /etc/passwd /etc/group