python之read,readline,readlines区别
qd_cpu_str=os.popen(r" ps -ef|grep QD|grep -v grep|grep -v cpu|awk '{print $10','$2','$14}'")for line in qd_cpu_str.read():
print "line read is: %s" %line
结果：
/usr/bin/python2.6 /data/script/python/pycharm/pycharm_test1/cpu_QD.py
line read is: 1
line read is:
line read is: 7
line read is: 2
line read is: 9
line read is: 1
line read is:
line read is: Q
line read is: W
line read is: o
line read is: r
line read is: l
line read is: d
line read is:
line read is: 1
line read is:
line read is: 7
line read is: 2
line read is: 9
line read is: 7
line read is:
line read is: Q
line read is: D
line read is: B
line read is: P
line read is: r
line read is: o
line read is: x
line read is: y
line read is:
line read is: 1
line read is:
line read is: 7
line read is: 3
line read is: 1
line read is: 0
line read is:
line read is: Q
line read is: G
line read is: a
line read is: m
line read is: e
line read is: S
line read is: e
line read is: r
line read is: v
line read is: e
line read is: r
line read is:
line read is: 1
line read is:
line read is: 7
line read is: 3
line read is: 1
line read is: 5
line read is:
line read is: Q
line read is: G
line read is: a
line read is: t
line read is: e
line read is: w
line read is: a
line read is: y
line read is:
line read is: 1
line read is:
line read is: 7
line read is: 3
line read is: 2
line read is: 5
line read is:
line read is: Q
line read is: C
line read is: o
line read is: m
line read is: m
line read is: u
line read is: n
line read is: i
line read is: t
line read is: y
line read is:
line read is: 2
line read is:
line read is: 7
line read is: 3
line read is: 9
line read is: 0
line read is:
line read is: Q
line read is: W
line read is: o
line read is: r
line read is: l
line read is: d
line read is:
line read is: 2
line read is:
line read is: 7
line read is: 3
line read is: 9
line read is: 7
line read is:
line read is: Q
line read is: D
line read is: B
line read is: P
line read is: r
line read is: o
line read is: x
line read is: y
line read is:
line read is: 2
line read is:
line read is: 7
line read is: 4
line read is: 0
line read is: 3
line read is:
line read is: Q
line read is: G
line read is: a
line read is: m
line read is: e
line read is: S
line read is: e
line read is: r
line read is: v
line read is: e
line read is: r
line read is:
line read is: 2
line read is:
line read is: 7
line read is: 4
line read is: 0
line read is: 8
line read is:
line read is: Q
line read is: G
line read is: a
line read is: t
line read is: e
line read is: w
line read is: a
line read is: y
line read is:
line read is: 2
line read is:
line read is: 7
line read is: 4
line read is: 1
line read is: 2
line read is:
line read is: Q
line read is: C
line read is: o
line read is: m
line read is: m
line read is: u
line read is: n
line read is: i
line read is: t
line read is: y
line read is:
line read is: 3
line read is:
line read is: 7
line read is: 4
line read is: 4
line read is: 7
line read is:
line read is: Q
line read is: W
line read is: o
line read is: r
line read is: l
line read is: d
line read is:
line read is: 3
line read is:
line read is: 7
line read is: 4
line read is: 5
line read is: 4
line read is:
line read is: Q
line read is: D
line read is: B
line read is: P
line read is: r
line read is: o
line read is: x
line read is: y
line read is:
line read is: 3
line read is:
line read is: 7
line read is: 4
line read is: 7
line read is: 5
line read is:
line read is: Q
line read is: G
line read is: a
line read is: m
line read is: e
line read is: S
line read is: e
line read is: r
line read is: v
line read is: e
line read is: r
line read is:
line read is: 3
line read is:
line read is: 7
line read is: 4
line read is: 8
line read is: 2
line read is:
line read is: Q
line read is: G
line read is: a
line read is: t
line read is: e
line read is: w
line read is: a
line read is: y
line read is:
line read is: 3
line read is:
line read is: 7
line read is: 4
line read is: 8
line read is: 6
line read is:
line read is: Q
line read is: C
line read is: o
line read is: m
line read is: m
line read is: u
line read is: n
line read is: i
line read is: t
line read is: y
line read is:
Process finished with exit code 0
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