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使用 awk 从动态位置获取数据

tag-icon • tag-icon linux text-processing awk
使用 awk 从动态位置获取数据

我已经编译了一些代码，但有很多错误，我想创建一个表来显示一些内容：源文件的路径、行号和未定义的引用。使用简单的 awk 并打印 $1,$2 等来挖掘第一个和第二个并不是什么大问题，但未定义的引用是有问题的，因为它出现在输出中的不同位置。

这是我试图用我想编写的脚本来解析的错误日志的片段。

out/target/product/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h:408：错误：未定义引用 'fishy_proto::Service::CopyFrom(fishy_proto::Service常量&)'
base/fishy/fishy/impl/service.cpp:448：错误：未定义对“fishy_proto::Service::Service()”的引用
base/fishy/fishy/impl/service.cpp:489：错误：未定义对“fishy_proto::Service::~Service()”的引用
base/fishy/fishy/impl/service.cpp:489：错误：未定义对“fishy_proto::Service::~Service()”的引用
base/fishy/fishy/impl/service_registry.cpp:51：错误：未定义对“fishy_proto::ServiceList::ServiceList()”的引用
base/fishy/fishy/impl/service_registry.cpp:51：错误：未定义对“fishy_proto::ServiceList::~ServiceList()”的引用
base/fishy/fishy/impl/service_registry.cpp:51：错误：未定义对“fishy_proto::ServiceList::~ServiceList()”的引用
base/fishy/fishy/impl/service_registry.cpp:51：错误：未定义对“fishy_proto::ServiceList::~ServiceList()”的引用
base/fishy/fishy/impl/service_registry.cpp:51：错误：未定义对“fishy_proto::ServiceList::~ServiceList()”的引用
base/fishy/fishy/impl/service_registry.cpp:279：错误：未定义对“fishy_proto::Request::Request()”的引用
base/fishy/fishy/impl/service_registry.cpp:319：错误：未定义对“fishy_proto::Request::~Request()”的引用
base/fishy/fishy/impl/service_registry.cpp:319：错误：未定义对“fishy_proto::Request::~Request()”的引用
base/fishy/fishy/impl/service_registry.cpp:722：错误：未定义对“fishy_proto::Request::Request()”的引用
out/target/product/phaedra/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h:72：错误：未定义对“fishy_proto::Request_Type_descriptor()”的引用
base/fishy/fishy/impl/service_registry.cpp:762：错误：未定义对“fishy_proto::Request::~Request()”的引用
base/fishy/fishy/impl/service_registry.cpp:762：错误：未定义对“fishy_proto::Request::~Request()”的引用
base/fishy/fishy/impl/service_registry.cpp:463：错误：未定义对“fishy_proto::Service::Service()”的引用
base/fishy/fishy/impl/service_registry.cpp:500：错误：未定义对“fishy_proto::Service::~Service()”的引用
base/fishy/fishy/impl/service_registry.cpp:500：错误：未定义对“fishy_proto::Service::~Service()”的引用
external/protobuf/src/google/protobuf/arena.h:649：错误：未定义对“fishy_proto::ServiceGroup::ServiceGroup()”的引用
external/protobuf/src/google/protobuf/arena.h:309：错误：未定义对“fishy_proto::ServiceGroup::ServiceGroup()”的引用
external/protobuf/src/google/protobuf/arena.h:649：错误：未定义对“fishy_proto::Service::Service()”的引用
external/protobuf/src/google/protobuf/arena.h:309：错误：未定义对“fishy_proto::Service::Service()”的引用

正如您所看到的，与其他行相比，第 1 行和第 14 行在不同位置显示了未定义的引用。

有没有一种方法可以运行 awk，它会忽略确切的位置，但仍会带来未定义引用的值？

答案1

您的示例输出表明“未定义的引用”将始终是awk一行的最后一个字段。在 中awk，NF将是字段的数量，并且$NF将是其数量为“字段数量”的字段，即。最后一个字段，这就是您所要求的。

awk '{print "undefined reference = " $NF}'

答案2

源文件的路径、行号和未定义的引用

sed解决方案：

sed -E 's/^([^:]+):([0-9]+): error: undefined reference to (.*)/\1 \2 \3/' file

输出：

out/target/product/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h 408 'fishy_proto::Service::CopyFrom(fishy_proto::Service const&)'
base/fishy/fishy/impl/service.cpp 448 'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service.cpp 489 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service.cpp 489 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp 51 'fishy_proto::ServiceList::ServiceList()'
base/fishy/fishy/impl/service_registry.cpp 51 'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp 51 'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp 51 'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp 51 'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp 279 'fishy_proto::Request::Request()'
base/fishy/fishy/impl/service_registry.cpp 319 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp 319 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp 722 'fishy_proto::Request::Request()'
out/target/product/phaedra/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h 72 'fishy_proto::Request_Type_descriptor()'
base/fishy/fishy/impl/service_registry.cpp 762 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp 762 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp 463 'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service_registry.cpp 500 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp 500 'fishy_proto::Service::~Service()'
external/protobuf/src/google/protobuf/arena.h 649 'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h 309 'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h 649 'fishy_proto::Service::Service()'
external/protobuf/src/google/protobuf/arena.h 309 'fishy_proto::Service::Service()'

答案3

如果你不介意使用 perl：

perl -pe 's/^(.*?):(\d+): error: undefined reference to (.*)/\1\t\2\t\3/g'

您的示例的输出将如下所示：

out/target/product/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h    408 'fishy_proto::Service::CopyFrom(fishy_proto::Service const&)'
base/fishy/fishy/impl/service.cpp   448 'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service.cpp   489 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service.cpp   489 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp  51  'fishy_proto::ServiceList::ServiceList()'
base/fishy/fishy/impl/service_registry.cpp  51  'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp  51  'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp  51  'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp  51  'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp  279 'fishy_proto::Request::Request()'
base/fishy/fishy/impl/service_registry.cpp  319 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp  319 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp  722 'fishy_proto::Request::Request()'
out/target/product/phaedra/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h    72  'fishy_proto::Request_Type_descriptor()'
base/fishy/fishy/impl/service_registry.cpp  762 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp  762 'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp  463 'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service_registry.cpp  500 'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp  500 'fishy_proto::Service::~Service()'
external/protobuf/src/google/protobuf/arena.h   649 'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h   309 'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h   649 'fishy_proto::Service::Service()'
external/protobuf/src/google/protobuf/arena.h   309 'fishy_proto::Service::Service()'

答案4

我已经使用 sed 通过以下方法完成了

sed -ne "s/\(.*error:\)\(.*reference to \)\('.*'\)/\1\3/p" inputfile

输出

out/target/product/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h:408: error:'fishy_proto::Service::CopyFrom(fishy_proto::Service const&)'
base/fishy/fishy/impl/service.cpp:448: error:'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service.cpp:489: error:'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service.cpp:489: error:'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp:51: error:'fishy_proto::ServiceList::ServiceList()'
base/fishy/fishy/impl/service_registry.cpp:51: error:'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp:51: error:'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp:51: error:'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp:51: error:'fishy_proto::ServiceList::~ServiceList()'
base/fishy/fishy/impl/service_registry.cpp:279: error:'fishy_proto::Request::Request()'
base/fishy/fishy/impl/service_registry.cpp:319: error:'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp:319: error:'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp:722: error:'fishy_proto::Request::Request()'
out/target/product/phaedra/gen/SHARED_LIBRARIES/libfishy_proto_intermediates/proto/base/fishy/fishy/prefix/fishy_proto/service_registry.pb.h:72: error:'fishy_proto::Request_Type_descriptor()'
base/fishy/fishy/impl/service_registry.cpp:762: error:'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp:762: error:'fishy_proto::Request::~Request()'
base/fishy/fishy/impl/service_registry.cpp:463: error:'fishy_proto::Service::Service()'
base/fishy/fishy/impl/service_registry.cpp:500: error:'fishy_proto::Service::~Service()'
base/fishy/fishy/impl/service_registry.cpp:500: error:'fishy_proto::Service::~Service()'
external/protobuf/src/google/protobuf/arena.h:649: error:'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h:309: error:'fishy_proto::ServiceGroup::ServiceGroup()'
external/protobuf/src/google/protobuf/arena.h:649: error:'fishy_proto::Service::Service()'
external/protobuf/src/google/protobuf/arena.h:309: error:'fishy_proto::Service::Service()'

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