Linux shell编程
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#!/bin/bash
#judge operation
function1()
{
#a > b?
if [ $1 -gt $2 ]; then
echo "hehe"
return 0
else
echo "oo"
return 1
fi
}
function2()
{
case $1 in
0)
echo "the value is 0"
;;
1)
echo "the value is 1"
;;
2)
echo "the value is 2"
;;
esac
return 0
}
#a & b
function4()
{
a=0x1e
b=0x06
c=$[$a & $b]
echo $c
return 0
}
function3()
{
gg="luoguoxian is a good man /dfs df:abc:0x21"
want_value=`echo ${gg} | awk -F ":" '{print $3}'`
echo "in function3 get value: ${want_value}"
return 0
}
#main
#variable
aa="luoguoxian"
bb=12
cc=23
dd='c'
ff=1
function1 ${bb} ${cc}
echo $?
function2 ${ff}
if [ $? == 0 ]; then
echo "process function2 successfully"
fi
function3
function4
#一个学习的网址:http://www.runoob.com/linux/linux-shell-func.html
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