linux 之shell 2
1.初认识shell
echo –e 处理特殊字符
以下省略注释
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#!/bin/bash
#program:
#?????? this
program shows “hello world” in your screen
#histroy:
#2012/10/8 labreeze first-release
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PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH
echo -e?
“hello world\a\n”
exit ?0
2.定义变量 输出变量
#!/bin/bash
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#var
var1=”apple”
var2=orange
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echo ${var1},$var1
echo “${var1},$var1”
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echo ${var2},$var2
echo “${var2},$var2”
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#array
users=(one two three)
#len=${#users[*]}
len=${#users}
echo $len
exit 0
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3.终端读取变量
read –p
-p 标志的文件结束符引起该进程的清除,因此产生另外一个进程。
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