Question

我在文本文件中有这些数据。需要转换为放入模板

data.txt中

*   A   11.22.33.44
mail    A   11.22.33.44
domain1.com     A   11.22.33.44
ftp     CNAME   domain1.com
www     CNAME   domain1.com
domain1.com MX mail.domain1.com

*   A   55.66.77.88
mail    A   55.66.77.88
domain2.com     A   55.66.77.88
ftp     CNAME   domain2.com
www     CNAME   domain2.com
domain2.com MX mail.domain2.com

通过此vim命令

运行它

:g/NS/d | :%s/CNAME/cnamerecord/g | :%s/A/arecord/g | :%s/MX/mxrecord/g

将其更改为：

arecord *                11.22.33.44
arecord mail             11.22.33.44
arecord domain1.com      11.22.33.44
ftp     cnamerecord     domain1.com
www     cnamerecord     domain1.com
domain1.com mxrecord mail.domain1.com

arecord *         55.66.77.88
arecord mail             55.66.77.88
arecord domain2.com             55.66.77.88
ftp     cnamerecord     domain2.com
www     cnamerecord     domain2.com
domain2.com mxrecord mail.domain2.com

现在我运行一个AWK命令

cat data.txt |
awk '{if ($2 == "arecord") print $2 " " $1 " " $3}
     {if ($2 == "cnamerecord") print $2 " " $1 "." $3 " " $3}
     {if ($2 == "mxrecord") print $2 " " $1 " " $3}'

，输出如下：

arecord * 11.22.33.44
arecord mail 11.22.33.44
arecord domain1.com 11.22.33.44
cnamerecord ftp.domain1.com domain1.com
cnamerecord www.domain1.com domain1.com
mxrecord domain1.com mail.domain1.com
arecord * 55.66.77.88
arecord mail 55.66.77.88
arecord domain2.com 55.66.77.88
cnamerecord ftp.domain2.com domain2.com
cnamerecord www.domain2.com domain2.com
mxrecord domain2.com mail.domain2.com

现在，这里有两个问题：

问题1和我最头疼的问题是：如何保持数据之间的空间。我想保留的文件中有一个空白行。

问题＃2（奖励积分）：在我的AWK代码中，我希望将arecord显示为：

arecord *.domain1.com 55.66.77.88
arecord mail.domain1.com 55.66.77.88
arecord domain1 55.66.77.88

NOT：

arecord * 11.22.33.44
arecord mail 11.22.33.44
arecord domain1.com 11.22.33.44

最终理想输出看起来像这样

arecord *.domain1.com 11.22.33.44
arecord mail.domain1.com 11.22.33.44
arecord domain1.com 11.22.33.44
cnamerecord ftp.domain1.com domain1.com
cnamerecord www.domain1.com domain1.com
mxrecord domain1.com mail.domain1.com

arecord *.domain2.com 55.66.77.88
arecord mail.domain2.com 55.66.77.88
arecord domain2.com 55.66.77.88
cnamerecord ftp.domain2.com domain2.com
cnamerecord www.domain2.com domain2.com
mxrecord domain2.com mail.domain2.com

我必须为150个域名执行此操作

任何帮助都会很棒

Answer 1

有人这样吗？

cat file
arecord * 11.22.33.44
arecord mail 11.22.33.44
arecord domain1.com 11.22.33.44
ftp cnamerecord domain1.com
www cnamerecord domain1.com
domain1.com mxrecord mail.domain1.com

arecord * 55.66.77.88
arecord mail 55.66.77.88
arecord domain2.com 55.66.77.88
ftp cnamerecord domain2.com
www cnamerecord domain2.com
domain2.com mxrecord mail.domain2.com

awk命令

awk '
/arecord/ && !c { 
    c=NR+2}
NR==c {
    c=0
    print $1 " *." $2,$3 "\n" $1" mail." $2,$3 "\n" $0}
/^ftp|^www/{
    print $2,$1 "." $3,$3}
/mxrecord/ {
    print $2,$1,$3}
!NF {
    print ""}
' file
arecord *.domain1.com 11.22.33.44
arecord mail.domain1.com 11.22.33.44
arecord domain1.com 11.22.33.44
cnamerecord ftp.domain1.com domain1.com
cnamerecord www.domain1.com domain1.com
mxrecord domain1.com mail.domain1.com

arecord *.domain2.com 55.66.77.88
arecord mail.domain2.com 55.66.77.88
arecord domain2.com 55.66.77.88
cnamerecord ftp.domain2.com domain2.com
cnamerecord www.domain2.com domain2.com
mxrecord domain2.com mail.domain2.com

更新以摆脱getline

Answer 2

如果您将单独的if语句加入if..else if..else，则可以添加后备广告以按原样打印所有其他行;这将保留空行（以及任何注释行等）：

cat data.txt | awk '{if ($2 == "arecord") print $2 " " $1 " " $3; else if ($2 == "cnamerecord") print $2 " " $1 "." $3 " " $3; else if ($2 == "mxrecord") print $2 " " $1 " " $3; else print}'

Awk跳过空白行

2 个答案: