[英]python read all files in directory and subdirectories
我正在尝试在python中翻译此bash行:
find /usr/share/applications/ -name "*.desktop" -exec grep -il "player" {} \; | sort | while IFS=$'\n' read APPLI ; do grep -ilqw "video" "$APPLI" && echo "$APPLI" ; done | while IFS=$'\n' read APPLI ; do grep -iql "nodisplay=true" "$APPLI" || echo "$(basename "${APPLI%.*}")" ; done
结果是显示在Ubuntu系统中安装的所有视频应用程序。
->读取/ usr / share / applications /目录中的所有.desktop文件
->过滤字符串“ video”“ player”以找到视频应用程序
->过滤字符串“ nodisplay = true”和“ audio”以不显示音频播放器和no-gui应用
我想要的结果是(例如):
kmplayer
smplayer
vlc
xbmc
因此,我尝试了以下代码:
import os
import fnmatch
apps = []
for root, dirnames, filenames in os.walk('/usr/share/applications/'):
for dirname in dirnames:
for filename in filenames:
with open('/usr/share/applications/' + dirname + "/" + filename, "r") as auto:
a = auto.read(50000)
if "Player" in a or "Video" in a or "video" in a or "player" in a:
if "NoDisplay=true" not in a or "audio" not in a:
print "OK: ", filename
filename = filename.replace(".desktop", "")
apps.append(filename)
print apps
但是我对递归文件有问题...
我该如何解决? 谢谢
看起来您在做os.walk()
循环不正确。 不需要嵌套的dir循环。
请参考Python手册以获取正确的示例:
https://docs.python.org/2/library/os.html?highlight=walk#os.walk
for root, dirs, files in os.walk('python/Lib/email'):
for file in files:
with open(os.path.join(root, file), "r") as auto:
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