今天调试shell时候 突然出现一个问题,之前都没有发现过
08 :value too great for base
<pre name="code" class="plain" style="margin: 4px 0px; background-color: rgb(240, 240, 240);">if [ $(($(date "+%M")%5)) -eq $((0)) ];then
echo 111
fi最后跟踪问题,发现在时间为 08分钟和 09分钟时,都会出现这种问题,查阅资料
Numbers starting with leading 0 are Octal numbers (base 8) in many programming
languages including C, Perl and shell. Valid octal digits are
0,1,2,3,4,5,6,7 so it barfs if it sees an 8 or a 9. You probably want
to work in straight numbers and make a leading 0 in your output
format with a sprintf("%02d") kind of formatting thing.
Anything starting with 0x or 0X is a hex number.
So the error message means exactly as it says- it's an error from
the let function complaining about the value being too big for the base.
Have fun,
Stuart.原帖地址:http://www.google.com/search?client=safari&rls=zh-cn&q=value+too+great+for+base&ie=UTF-8&oe=UTF-8
解决方案,增加 10# 定义为十进制就ok了
<pre name="code" class="plain" style="margin: 4px 0px; background-color: rgb(240, 240, 240);">if [ $((10#$(date "+%M")%5)) -eq $((0)) ];then
echo 111
fi