Sed包裹了一些线，而不是全部

Question

仍在处理古怪的文件（参见my previous post），我正在使用SED来清理一些如下所示的文件：

....Receiver ID   = 028912781755
    Serial Number = WD-WCAUH0546786
    Current temp  = 50C
    PowerOnHours  = 13166h
    Receiver ID   = 028920310381
    Serial Number = WD-WCAUH0898333
    Current temp  = 51C
    PowerOnHours  = 9099h...

我的老板希望像这样的文件是tab（“\ t”）这样的分隔

Receiver ID = 028912781755 Serial Number = WD-WCAUH0546786 Current temp  = 50C PowerOnHours  = 13166h

这是我的sed代码：

sed -e '/.$/N; s/.\n/\t/'

它有效，但奇怪的是，并非无处不在。这是我得到的输出

Receiver ID   = 028920310381 Serial Number = WD-WCAUH0898333 
Current temp  = 51 PowerOnHours  = 9099h

=============================================== ======================= 我需要更具体。我得到的所有建议产生了相同的结果：它将所有内容单独添加到一行。不是我想要的。

我正在寻找：

Receiver ID = ...<tab>Serial Number = ...<tab>Current temp  = ...<tab>PowerOnHours  = ...<tab><carriage return>
Receiver ID = ...<tab>Serial Number = ...<tab>Current temp  = ...<tab>PowerOnHours  = ...<tab> 

Answer 1

字段数有所不同，但以PowerOnHours结尾

awk 'ORS=/PowerOnHours/?RS:"\t"' ./infile

概念证明

$ awk 'ORS=/PowerOnHours/?RS:"\t"' receiverid
Receiver ID   = 028912781755    Special Field = foo bar baz     Serial Number = WD-WCAUH0546786 Current temp  = 50C     PowerOnHours  = 13166h
Receiver ID   = 028920310381    Serial Number = WD-WCAUH0898333 Current temp  = 51C     PowerOnHours  = 9099h
Receiver ID   = 028912781755    Serial Number = WD-WCAUH0546786 Current temp  = 50C     PowerOnHours  = 13166h
Receiver ID   = 028920310381    Serial Number = WD-WCAUH0898333 Current temp  = 51C     PowerOnHours  = 9099h

*请注意第一行特殊字段

---

记录之间的字段数相同

awk 'ORS=NR%4?"\t":RS' ./infile

概念证明

$ awk 'ORS=NR%4?"\t":RS' ./infile
Receiver ID   = 028912781755    Serial Number = WD-WCAUH0546786 Current temp  = 50C     PowerOnHours  = 13166h
Receiver ID   = 028920310381    Serial Number = WD-WCAUH0898333 Current temp  = 51C     PowerOnHours  = 9099h
Receiver ID   = 028912781755    Serial Number = WD-WCAUH0546786 Current temp  = 50C     PowerOnHours  = 13166h
Receiver ID   = 028920310381    Serial Number = WD-WCAUH0898333 Current temp  = 51C     PowerOnHours  = 9099h

Answer 2

尝试一下：

sed '/^Receiver/N;N;N;s/\n/\t/g' inputfile

说明：

• /^Receiver/N;N;N; - 每次读取以“Receiver”开头的行时，请追加接下来的三行。
• s/\n/\t/g - 使用标签
替换嵌入的换行符

示例输出：

Receiver ID   = 028912781755        Serial Number = WD-WCAUH0546786        Current temp  = 50C        PowerOnHours  = 13166h
Receiver ID   = 028920310381        Serial Number = WD-WCAUH0898333        Current temp  = 51C        PowerOnHours  = 9099h

（我夸大了标签的效果。）

Answer 3

你可以使用awk

$ cat  file
Receiver ID   = 028912781755
Serial Number = WD-WCAUH0546786
Current temp  = 50C
PowerOnHours  = 13166h
Receiver ID   = 028920310381
Serial Number = WD-WCAUH0898333
Current temp  = 51C
PowerOnHours  = 9099h...

$ awk 'BEGIN{RS="Receiver";OFS="\t"}NF>1{$1=$1;print "Receiver\t"$0}' file
Receiver        ID      =       028912781755    Serial  Number  =       WD-WCAUH0546786 Current temp    =       50C     PowerOnHours    =       13166h
Receiver        ID      =       028920310381    Serial  Number  =       WD-WCAUH0898333 Current temp    =       51C     PowerOnHours    =       9099h...

Answer 4

sed ':a          
N;/\nReceiver/{
P;D
}          
s/\n/X/;ta'

Answer 5

如上所述，将第二行连接到第一行，然后转到第三行并将第四行连接到它等等。

sed ':b; /^$/n; N; s/.\n\(.\)/\t\1/; tb'

应该循环追加非空行。 （更正为在运行中实际捕获空白行。）

Answer 6

cat file | tr '\n' '\t' 也会工作