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shell基础学习系列（3）：关于awk的两个练习
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习题1（2007-02-08）
第一个练习，你的输入是按照下列形式的行： Username:Firstname:Lastname:Telephone number
写一个把这样的行转换成一个如下LDAP记录格式的 awk 脚本： dn: uid=Username, dc=example, dc=com
cn: Firstname Lastname
sn: Lastname
telephoneNumber: Telephone number
建立并检查一个包含一系列测试记录的文件。
完成awk脚本文件如下：
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BEGIN { FS=":" }
{ print "dn: uid=" $1 ", dc=example, dc=com" }
{ print "cn: " $2, $3 }
{ print "sn: " $3 }
{ print "telephoneNumber: " $4 }
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测试：
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[armlinux@lqm practice]$ awk -f testawk1 test
dn: uid=Username, dc=example, dc=com
cn: Firstname Lastname
sn: Lastname
telephoneNumber: Telephone number
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awk脚本还可以更改为：
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[armlinux@lqm practice]$ cat testawk
BEGIN { FS=":" }
{ print "dn: uid=" $1 ", dc=example, dc=com\ncn: " $2, $3 "\nsn: " $3 "\ntelephoneNumber: " $4 }
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习题二（2007-02-08）
以下列格式为准从 Tab分割列表中建立XML风格输出： Meaning very long line with a lot of description
meaning another long line
othermeaning more longline
testmeaning loooline, but i mean really ooong.
输出像这样： <row>
<entry>Meaning</entry>
<entry>
very long line
</entry>
</row>
<row>
<entry>meaning</entry>
<entry>
long line
</entry>
</row>
<row>
<entryothermeaning</entry>
<entry>
more longline
</entry>
</row>
<row>
<entrytestmeaning</entry>
<entry>
loooline, but i mean really ooong.
</entry>
</row>
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[armlinux@lqm practice]$ cat xml
Meaning very long line with a lot of description
meaning another long line
othermeaning more longline
testmeaning loooooooooooooooooooooline, but I mean really looooooooo
[armlinux@lqm practice]$ cat testxml
BEGIN { FS="\t" }
{ print "<row>" }
{ print "<entry>" $1 "</entry>" }
{ print "<entry>" }
{ print $2 }
{ print "</entry>"}
{ print "</row>" }
[armlinux@lqm practice]$ awk -f testxml xml
<row>
<entry>Meaning</entry>
<entry>
very long line with a lot of description
</entry>
</row>
<row>
<entry>meaning</entry>
<entry>
another long line
</entry>
</row>
<row>
<entry>othermeaning</entry>
<entry>
more longline
</entry>
</row>
<row>
<entry>testmeaning</entry>
<entry>
loooooooooooooooooooooline, but I mean really looooooooo
</entry>
</row>
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发表于： 2007-02-08，修改于： 2007-11-19 17:00，已浏览1240次，有评论0条
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