目标：将teacher.db转换成html格式文档
[root@ilovelluvia re]# cat teacher.db
J Luo:Southeast University:Nanjing:china
Y Zhang:Victory University:Melbourne:Australia
D Hou:Beijing university:Beijing:China
B Liu:Shanghai Jiaotong University:Shanghai:China
C Lin:University of Toronto:Toronto:Canada
C Ju:University of Beijin Hangkong Hangtian:Beijin:China
[root@ilovelluvia re]# cat txttohtml.sh
脚本：
[root@ilovelluvia re]# cat txttohtml.sh
#!/bin/bash
cat << CLOUD
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<style type="text/css">
table{
border-collapse: collapse;
}
table,th,td{
border:1px,solid,black;
}
</style>
<body>
<table border ="1">
<thead>
<tr bgcolor="#FFD700">
<th>姓名</th>
<th>大学</th>
<th>城市</th>
<th>国家</th>
</tr>
</thead>
<tbody>
CLOUD
#以下2个方法都OK
#sed -e 's/:/<\/td><td>/g' -e 's/^/<tr><td>/g' -e 's/$/<\/td><\/tr>/g'
#awk 'BEGIN {FS=":";OFS="</td><td>"} gsub(/^/,"<tr><td>") gsub(/$/,"</td><tr>") {print $1,$2,$3,$4}'
cat << CLOUD
</tbody>
</table>
</body>
</html>
CLOUD
执行：
[root@ilovelluvia re]# sh txttohtml.sh <teacher.db> teacher.html
#执行txttohtml.sh 将teacher.db重定向到stdin,stdout重定向到teacher.html
查看：
文本文件转化为HTML文件