批處理如何提取txt文本中含有特定字符串的行內容

[已解決]批處理如何提取txt文本中含有特定字符串的行內容最后由 pcl_test 于 -8-13 20:50批處理如何獲取TXT中設備下面標示符的字符串？這是Windows8.1 BCD中的內容我想獲取TXT中【設備選項】下面標識符的字符串【{e9aa8814-419f-11e4-972a-f4ce4698d370} 】并輸出到b.txt 這只是個范例可能其它BCD中字符串就不在這一行了最好不要用行數來識別字符串，謝謝！

Windows 啟動管理器
--------------------
標識符{bootmgr}
devicepartition=C:
description Windows Boot Manager
localezh-CN
inherit {globalsettings}
integrityservices Enable
default {current}
resumeobject{e9aa8811-419f-11e4-972a-f4ce4698d370}
displayorder{current}
toolsdisplayorder {memdiag}
timeout 30
Windows 啟動加載器
-------------------
標識符{current}
devicepartition=C:
pathWindowssystem32winload.exe
description Windows 8.1
localezh-CN
inherit {bootloadersettings}
recoverysequence{e9aa8813-419f-11e4-972a-f4ce4698d370}
integrityservices Enable
recoveryenabled Yes
allowedinmemorysettings 0x15000075
osdevicepartition=C:
systemrootWindows
resumeobject{e9aa8811-419f-11e4-972a-f4ce4698d370}
nxOptIn
bootmenupolicyStandard
Windows 啟動加載器
-------------------
標識符{e9aa8813-419f-11e4-972a-f4ce4698d370}
deviceramdisk=[C:]RecoveryWindowsREWinre.wim,{e9aa8814-419f-11e4-972a-f4ce4698d370}
pathwindowssystem32winload.exe
description Windows Recovery Environment
localezh-cn
inherit {bootloadersettings}
displaymessageRecovery
displaymessageoverrideRecovery
osdeviceramdisk=[C:]RecoveryWindowsREWinre.wim,{e9aa8814-419f-11e4-972a-f4ce4698d370}
systemrootwindows
nxOptIn
bootmenupolicyStandard
winpe Yes
從休眠狀態恢復
---------------------
標識符{e9aa8811-419f-11e4-972a-f4ce4698d370}
devicepartition=C:
pathWindowssystem32winresume.exe
description Windows Resume Application
localezh-CN
inherit {resumeloadersettings}
recoverysequence{e9aa8813-419f-11e4-972a-f4ce4698d370}
recoveryenabled Yes
allowedinmemorysettings 0x15000075
filedevicepartition=C:
filepathhiberfil.sys
bootmenupolicyStandard
pae Yes
debugoptionenabledNo
Windows 內存測試程序
---------------------
標識符{memdiag}
devicepartition=C:
pathbootmemtest.exe
description Windows 內存診斷
localezh-CN
inherit {globalsettings}
badmemoryaccess Yes
EMS 設置
------------
標識符{emssettings}
bootems No
調試器設置
-----------------
標識符{dbgsettings}
debugtype Serial
debugport 1
baudrate115200
RAM 故障
-----------
標識符{badmemory}
全局設置
---------------
標識符{globalsettings}
inherit {dbgsettings}
{emssettings}
{badmemory}
啟動加載器設置
--------------------
標識符{bootloadersettings}
inherit {globalsettings}
{hypervisorsettings}
虛擬機監控程序設置
-------------------
標識符{hypervisorsettings}
hypervisordebugtype Serial
hypervisordebugport 1
hypervisorbaudrate115200
恢復加載器設置
----------------------
標識符{resumeloadersettings}
inherit {globalsettings}
設備選項
--------------
標識符{e9aa8814-419f-11e4-972a-f4ce4698d370}
description Windows Recovery
ramdisksdidevicepartition=C:
ramdisksdipathRecoveryWindowsREboot.sdi
nclick="copycode($('code0'));">復制代碼