我想在python程序中运行以下linuxbash
命令行。
tail /var/log/omxlog | stdbuf -o0 grep player_new | while read i
do
Values=$(omxd S | awk -F/ '{print $NF}')
x1="${Values}"
x7="${x1##*_}"
x8="${x7%.*}"
echo ${x8}
done
我知道,对于单行命令,我们可以使用以下语法:
subprocess.call(['my','command'])
但是,如果在多行中有多个命令,我如何使用
subprocess.call
!? 最佳答案
这里有一个纯python解决方案,我认为它与您的bash
一样:
logname = '/var/log/omxlog'
with open(logname, 'rb') as f:
# not sure why you only want the last 10 lines, but here you go
lines = f.readlines()[-10:]
for line in lines:
if 'player_new' in line:
omxd = os.popen('omxd S').read()
after_ = omxd[line.rfind('_')+1:]
before_dot = after_[:after_.rfind('.')]
print(before_dot)