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输出

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输出

我有一个文件 tnsnames.ora ，其内容如下。

NEWDB =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1550))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = newdb)
    )
  )

LISTENER_DG11G =
  (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1550))
  )

LISTENER_SABDB =
  (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1550))
  )

STEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = STEST)
    )
  )

RBSDB =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = linuxerp.de.mph.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = RBSDB)
     )
    )

上面的文件中NEWDB = LISTENER_DG11G = LISTENER_SABDB = STEST = RBSDB =包含数据库名称和相应的服务名称SERVICE_NAME =

因此，从上面的文件中，我尝试提取数据库名称和相应的服务名称，并将其放入 Linux 中的文件或 .xls 中。

输出文件应该是这样的

NEWDB   newdb
STEST   STEST
RBSDB   RBSDB

所有没有服务名称的数据库不应添加到输出文件中。

我尝试使用CSPLIT并将第一组行移动到文件“X”，然后选择第一行和 SERVICE_NAME 使用cat X | grep -i "SERVICE_NAME" | cut -d "=" -f2 | rev | cut -d ")" -f2 | rev | awk "NF" 并将其移动到文件中，并以相同的方式附加到其余数据库名称。

但看起来好复杂啊。任何其他如何完成的想法将不胜感激。

答案1

我确信有更好的方法来处理这个问题，但这对awk脚本就可以完成这项工作。您可以使用带注释的放大版本或下面的单行文字；它们在功能上是相同的。

awk '
    BEGIN { RS="" }                             # Slurp paragraphs
    { print gensub("\n", " ", "g") }            # Replace NL with SPACE
' /tmp/tnsnames.ora |                           # ...in this file

awk '
    /SERVICE_NAME/ {                            # Only process matching lines
        listener=$1;                            # Listener is the first field
        si=NF-2;                                # Count fields back from end of string
        service=gensub(")", "", 1, $si);        # Strip trailing ")"
        printf "%s\t%s\n", listener, service    # Output result
    }
'

样品运行

awk 'BEGIN { RS="" } { print gensub("\n", " ", "g") }' /tmp/tnsnames.ora | awk '/SERVICE_NAME/ { listener=$1; si=NF-2; service=gensub(")", "", 1, $si);  printf "%s\t%s\n", listener, service }'
NEWDB   newdb
STEST   STEST
RBSDB   RBSDB

答案2

perl -l -00ne '
my ($blk) = /^\w+/g;

$np = qr/
   \(              # match an opening paren
     (?:
      (?> [^)(]+ ) # one or more non paren, non backtracking
           |
      (??{ $np })  # recurse for more
     )*
   \)              # match a closing paren
/x;

1 while
   /$np
     (?{
        m{ \( CONNECT_DATA \s+ = (?:\s*$np\s*)+ \) }x and
        m{ \( SERVICE_NAME \s+ = \s+ (\w+)      \) }x and
           print join $", $blk, $1 for $&;
     })
   /gx;
' input_file

输出

NEWDB newdb
STEST STEST
RBSDB RBSDB

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