記一次awk 、sed、egrep截取處理文本字段的經歷

羣裏面有個老哥，提出了個需求：篩選name=“中間的內容”

<project name="airliner/vendor/ts/prebuilt/Iap/Iapprotocol" path="lagvm/LINUX/android/vendor/ts/prebuilt/Iap/Iapprotocol" remote="prebuilt" revision="728e84ef2864978add6e323f3179fd5154c5d820" upstream="26.26.X.verify"/>
  <project name="airliner/vendor/ts/prebuilt/Iap/include" path="lagvm/LINUX/android/vendor/ts/prebuilt/Iap/include" revision="2274f1d98c6881debeeedb74036a18be8ee987dc" upstream="bayes"/>
  <project name="airliner/vendor/ts/prebuilt/bt/BluetoothService" path="lagvm/LINUX/android/vendor/ts/prebuilt/bt/BluetoothService" remote="prebuilt" revision="d664206ec028fd2353c0316c819e26f3efce9f81" upstream="26.26.X.0.0.0.11"/>
  <project groups="src" name="airliner/vendor/ts/proprietary/AudioManagement/CarAudioExtService/plugin-impl" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/CarAudioExtService/plugin-impl" revision="ee90c9d587dfe0d5c3088947d54e60431b194fd2" upstream="cauchy"/>
  <project groups="src" name="airliner/vendor/ts/proprietary/AudioManagement/CarAudioExtService/service" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/CarAudioExtService/service" revision="7cff3690e3c9029e3da1892ec4b89d196423bff5" upstream="cauchy"/>
  <project groups="ref" name="airliner/vendor/ts/proprietary/AudioManagement/ReferenceCode/AudioDemo" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/ReferenceCode/AudioDemo" revision="a8ec98a923fbef59e822eef0fe833adb9e5c94af" upstream="cauchy"/>
  <project groups="src" name="airliner/vendor/ts/proprietary/AudioManagement/audioext_daemon/components" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/audioext_daemon/components" revision="00bca24c74aecbb724c661fb692da933829c8ac9" upstream="cauchy"/>
  <project name="airliner/vendor/ts/proprietary/AudioManagement/audioext_daemon/config" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/audioext_daemon/config" revision="03b88e8a52fc67afef3753be5c46061956cf0582" upstream="cauchy"/>
  <project groups="src" name="airliner/vendor/ts/proprietary/AudioManagement/audioext_daemon/factory" path="lagvm/LINUX/android/vendor/ts/proprietary/AudioManagement/audioext_daemon/factory" revision="d026112dde151d034171a15fd8f5bb5a72738433" upstream="cauchy"/>

我：

在外面將  group="src" 替換爲空格， 然後再awk切.   （講道理，對比下面的，我這方法有丶撈）

awk -F '"'  '{print $2}' ceshi.txt

下面列出羣大佬給的解答方法：

方法 ①   先切 name=" ， 然後再分

awk -F 'name="' '{print $2}' 11.sh | awk -F '"' '{print $1}'

方法②   （egrep -o 相當於grep -Eo） 篩選後，再切

egrep -o name=".*" ceshi.txt | awk '{print $1}'
或
egrep -o name=".*" falcon.xml | awk -F '"' '{print $2}'

 

羣裏巨佬： （看不懂巨佬的，各種正則騷操作）

① grep

grep -Po '(?i)(?m)(?<=name\=")[^"]*(?="?)'

② sed 

sed -r 's/.*name=\"(.*)(\".*path.*)/\1/g' text

③ awk

awk '{split($0,arr,"\"");if($2~/groups/)print arr[4];else print arr[2]}'

 

Linux三劍客真滴頂 

END