使用python子流程库使用aapt打印apk版本代码

我需要知道APK文件的版本代码，为此，下面的命令非常有效

./aapt dump badging my.apk | grep versionCode | awk '{print $3}' | sed s/versionCode=//g | sed s/\'//g

上述代码的贷项-

我希望在python脚本中了解此版本代码，因此我使用子流程调用来运行相同的命令，但没有得到正确的输出

输出相当于执行

/aapt dump-bading my.apk

，之后不进行后期处理

这是我的python代码-

导入子流程

package = "cn.xender.apk"
test = subprocess.Popen(["./aapt", "dump", "badging", package, "|", "grep", "versionCode", "|", "'awk'", "'{print $3}'", "|", "sed", "s/versionCode=//g", "|", "sed", "s/\'//g"], stdout=subprocess.PIPE)
versionCode = test.communicate()[0]
print versionCode

我尝试使用单引号，并为awk和sed表达式中的引号提供转义字符，但结果没有变化

编辑-输出

/aapt dump-bading-cn.xender

package: name='cn.xender' versionCode='303' versionName='3.3.1025' platformBuildVersionName='6.0-2704002'
install-location:'auto'
sdkVersion:'9'
targetSdkVersion:'23'
uses-permission: name='android.permission.CAMERA'
uses-permission: name='android.permission.WRITE_EXTERNAL_STORAGE'
uses-permission: name='android.permission.READ_EXTERNAL_STORAGE'
uses-permission: name='android.permission.INTERNET'
uses-permission: name='android.permission.ACCESS_WIFI_STATE'
uses-permission: name='android.permission.ACCESS_NETWORK_STATE'
uses-permission: name='android.permission.WAKE_LOCK'
uses-permission: name='android.permission.VIBRATE'
uses-permission: name='android.permission.GET_TASKS'
uses-permission: name='android.permission.REORDER_TASKS'
uses-permission: name='android.permission.WRITE_SETTINGS'
uses-permission: name='android.permission.READ_CONTACTS'
uses-permission: name='android.permission.WRITE_CONTACTS'
uses-permission: name='android.permission.WRITE_PROFILE'
uses-permission: name='android.permission.READ_CALL_LOG'
uses-permission: name='android.permission.WRITE_CALL_LOG'
uses-permission: name='android.permission.WRITE_SMS'
uses-permission: name='android.permission.READ_SMS'
uses-permission: name='android.permission.MOUNT_UNMOUNT_FILESYSTEMS'
uses-permission: name='android.permission.BROADCAST_STICKY'
uses-permission: name='android.permission.CHANGE_WIFI_STATE'
uses-permission: name='android.permission.CHANGE_WIFI_MULTICAST_STATE'
uses-permission: name='android.permission.CHANGE_NETWORK_STATE'
uses-permission: name='android.permission.CHANGE_CONFIGURATION'
uses-permission: name='android.permission.GET_ACCOUNTS'
uses-permission: name='android.permission.ACCESS_COARSE_LOCATION'
uses-permission: name='android.permission.MANAGE_DOCUMENTS'
application-label:'Xender'
application-label-ca:'Xender'
application-label-da:'Xender'
application-label-fa:'Xender'
application-label-ja:'Xender'
application-label-ka:'Xender'
application-label-pa:'Xender'
application-label-ta:'Xender'
application-label-nb:'Xender'
application-label-be:'Xender'
application-label-de:'Xender'
application-label-ne:'Xender'
application-label-te:'Xender'
application-label-af:'Xender'
application-label-bg:'Xender'
application-label-th:'Xender'
application-label-fi:'Xender'
application-label-hi:'Xender'
application-label-si:'Xender'
application-label-vi:'Xender'
application-label-kk:'Xender'
application-label-mk:'Xender'
application-label-sk:'Xender'
application-label-uk:'Xender'
application-label-el:'Xender'
application-label-gl:'Xender'
application-label-ml:'Xender'
application-label-nl:'Xender'
application-label-pl:'Xender'
application-label-sl:'Xender'
application-label-tl:'Xender'
application-label-am:'Xender'
application-label-km:'Xender'
application-label-bn:'Xender'
application-label-en:'Xender'
application-label-in:'Xender'
application-label-kn:'Xender'
application-label-mn:'Xender'
application-label-ko:'Xender'
application-label-lo:'Xender'
application-label-no:'Xender'
application-label-ro:'Xender'
application-label-sq:'Xender'
application-label-ar:'Xender'
application-label-fr:'Xender'
application-label-hr:'Xender'
application-label-mr:'Xender'
application-label-sr:'Xender'
application-label-tr:'Xender'
application-label-ur:'Xender'
application-label-bs:'Xender'
application-label-cs:'Xender'
application-label-es:'Xender'
application-label-is:'Xender'
application-label-ms:'Xender'
application-label-et:'Xender'
application-label-it:'Xender'
application-label-lt:'Xender'
application-label-pt:'Xender'
application-label-eu:'Xender'
application-label-gu:'Xender'
application-label-hu:'Xender'
application-label-ru:'Xender'
application-label-zu:'Xender'
application-label-lv:'Xender'
application-label-sv:'Xender'
application-label-iw:'Xender'
application-label-sw:'Xender'
application-label-hy:'Xender'
application-label-ky:'Xender'
application-label-my:'Xender'
application-label-az:'Xender'
application-label-uz:'Xender'
application-label-fr-CA:'Xender'
application-label-lo-LA:'Xender'
application-label-en-GB:'Xender'
application-label-bn-BD:'Xender'
application-label-et-EE:'Xender'
application-label-ka-GE:'Xender'
application-label-ky-KG:'Xender'
application-label-km-KH:'Xender'
application-label-zh-HK:'Xender'
application-label-si-LK:'Xender'
application-label-mk-MK:'Xender'
application-label-ur-PK:'Xender'
application-label-sq-AL:'Xender'
application-label-hy-AM:'Xender'
application-label-my-MM:'Xender'
application-label-zh-CN:'Xender'
application-label-pa-IN:'Xender'
application-label-ta-IN:'Xender'
application-label-te-IN:'Xender'
application-label-ml-IN:'Xender'
application-label-en-IN:'Xender'
application-label-kn-IN:'Xender'
application-label-mr-IN:'Xender'
application-label-or-IN:'Xender'
application-label-as-IN:'Xender'
application-label-gu-IN:'Xender'
application-label-mn-MN:'Xender'
application-label-ne-NP:'Xender'
application-label-pt-BR:'Xender'
application-label-gl-ES:'Xender'
application-label-eu-ES:'Xender'
application-label-is-IS:'Xender'
application-label-es-US:'Xender'
application-label-pt-PT:'Xender'
application-label-en-AU:'Xender'
application-label-zh-TW:'Xender'
application-label-es-MX:'Xender'
application-label-ms-MY:'Xender'
application-label-az-AZ:'Xender'
application-label-kk-KZ:'Xender'
application-label-uz-UZ:'Xender'
application-icon-160:'r/r/a.png'
application-icon-240:'r/r/a.png'
application-icon-320:'r/d/a.png'
application-icon-480:'r/c/a.png'
application-icon-640:'r/c/a.png'
application-icon-65535:'r/c/a.png'
application: label='Xender' icon='r/r/a.png'
launchable-activity: name='cn.xender.ui.activity.SplashActivity'  label='Xender' icon=''
feature-group: label=''
  uses-feature-not-required: name='android.hardware.audio.low_latency'
  uses-feature-not-required: name='android.hardware.bluetooth'
  uses-feature-not-required: name='android.hardware.camera'
  uses-feature-not-required: name='android.hardware.camera.focus'
  uses-feature-not-required: name='android.hardware.location'
  uses-feature-not-required: name='android.hardware.location.gps'
  uses-feature-not-required: name='android.hardware.location.network'
  uses-feature-not-required: name='android.hardware.screen.portrait'
  uses-feature-not-required: name='android.hardware.telephony'
  uses-feature-not-required: name='android.hardware.touchscreen'
  uses-feature-not-required: name='android.hardware.wifi'
main
other-activities
other-receivers
other-services
supports-screens: 'small' 'normal' 'large' 'xlarge'
supports-any-density: 'true'
locales: '--_--' 'ca' 'da' 'fa' 'ja' 'ka' 'pa' 'ta' 'nb' 'be' 'de' 'ne' 'te' 'af' 'bg' 'th' 'fi' 'hi' 'si' 'vi' 'kk' 'mk' 'sk' 'uk' 'el' 'gl' 'ml' 'nl' 'pl' 'sl' 'tl' 'am' 'km' 'bn' 'en' 'in' 'kn' 'mn' 'ko' 'lo' 'no' 'ro' 'sq' 'ar' 'fr' 'hr' 'mr' 'sr' 'tr' 'ur' 'bs' 'cs' 'es' 'is' 'ms' 'et' 'it' 'lt' 'pt' 'eu' 'gu' 'hu' 'ru' 'zu' 'lv' 'sv' 'iw' 'sw' 'hy' 'ky' 'my' 'az' 'uz' 'fr-CA' 'lo-LA' 'en-GB' 'bn-BD' 'et-EE' 'ka-GE' 'ky-KG' 'km-KH' 'zh-HK' 'si-LK' 'mk-MK' 'ur-PK' 'sq-AL' 'hy-AM' 'my-MM' 'zh-CN' 'pa-IN' 'ta-IN' 'te-IN' 'ml-IN' 'en-IN' 'kn-IN' 'mr-IN' 'or-IN' 'as-IN' 'gu-IN' 'mn-MN' 'ne-NP' 'pt-BR' 'gl-ES' 'eu-ES' 'is-IS' 'es-US' 'pt-PT' 'en-AU' 'zh-TW' 'es-MX' 'ms-MY' 'az-AZ' 'kk-KZ' 'uz-UZ'
densities: '160' '240' '320' '480' '640' '65535'

-

/aapt dump-bading my.apk | grep versionCode | awk'{print$3}'| sed s/versionCode=///g | sed s/\'//g

303

---

您不需要大量的后处理，只需要

grep

中的这个表达式。我所做的是使用

grep

with，这是通过

-P

标志启用的

$ ./aapt dump badging my.apk | grep -Po "versionCode=\'\K[^\s\']+" 
303

（或）将其另存为

bash

变量

$ VERSIONCODE="$(./aapt dump badging my.apk | grep -Po "versionCode=\'\K[^\s\']+")"
$ echo "$VERSIONCODE"
303

grep

中的

-o

标志用于单独提取

versionCode

字符串以及正则表达式

• \K

  在搜索结果中忽略字符串的该部分
• 表达式的其余部分，以在单引号内提取一（或）多个字符

---

您可以验证

regEx

您不需要大量的后处理，只需在

grep

中使用此表达式即可。我所做的是使用

grep

with，这是通过

-P

标志启用的

$ ./aapt dump badging my.apk | grep -Po "versionCode=\'\K[^\s\']+" 
303

（或）将其另存为

bash

变量

$ VERSIONCODE="$(./aapt dump badging my.apk | grep -Po "versionCode=\'\K[^\s\']+")"
$ echo "$VERSIONCODE"
303

grep

中的

-o

标志用于单独提取

versionCode

字符串以及正则表达式

• \K

  在搜索结果中忽略字符串的该部分
• 表达式的其余部分，以在单引号内提取一（或）多个字符

---

您可以验证

regEx

如果您可以提供

/aapt dump-bading$apk_file

的输出，我们可以减少

grep

，

awk

命令的数量，使其更加整洁。以及）您的预期输出是什么？@Inian添加了完整输出和预期输出（仅版本代码）。如果您可以提供

/aapt dump-bading$apk_file

的输出，我们可以减少

grep

，

awk

命令的数量，使其更加整洁。以及）您的预期输出是什么？@Inian添加了完整输出和预期输出（仅版本代码）。谢谢。我会确保我完全理解它，并努力理解正则表达式。谢谢。我将确保彻底理解它，并努力理解正则表达式。