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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...例看个例子吧：#! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt...
什么是Shell脚本
示例
看个例子吧：
#!/bin/sh
cd ~
mkdir shell_tut
cd shell_tut
for ((i=0; i<10; i++)); do
touch test_$i.txt
done
示例解释
第1行：...
Is it expensive to use try-catch blocks even if an exception is never thrown?
... nextI = (i << 1) | 1;
} while (duration < 100000000 && nextI > 0);
return new BigDecimal((duration) * 1000 / i).movePointLeft(3);
} catch (Throwable e) {
throw new RuntimeException(e);
}
}
@Override
publ...
Converting XML to JSON using Python?
...
answered Oct 10 '08 at 14:34
Dan LenskiDan Lenski
63k1111 gold badges6161 silver badges107107 bronze badges
...
Simple C example of doing an HTTP POST and consuming the response
... serv_addr;
int sockfd, bytes, sent, received, total;
char message[1024],response[4096];
if (argc < 3) { puts("Parameters: <apikey> <command>"); exit(0); }
/* fill in the parameters */
sprintf(message,message_fmt,argv[1],argv[2]);
printf("Request:\n%s\n",mess...
How can javascript upload a blob?
...a sound blob created using recorder.js. Tested in Chrome version 32.0.1700.107
function uploadAudio( blob ) {
var reader = new FileReader();
reader.onload = function(event){
var fd = {};
fd["fname"] = "test.wav";
fd["data"] = event.target.result;
$.ajax({
type: 'POST',
...
What does @: (at symbol colon) mean in a Makefile?
...
Charlie MartinCharlie Martin
100k2222 gold badges175175 silver badges249249 bronze badges
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MySQL Query GROUP BY day / month / year
...
1038
GROUP BY YEAR(record_date), MONTH(record_date)
Check out the date and time functions in MyS...
How to hide “Showing 1 of N Entries” with the dataTables.js library
...e').dataTable({
"bInfo" : false
});
Update:
Since Datatables 1.10.* this option can be used as info, bInfo still works in current nightly build (1.10.10).
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How to add minutes to my Date
...e();
long t= date.getTimeInMillis();
Date afterAddingTenMins=new Date(t + (10 * ONE_MINUTE_IN_MILLIS));
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Django rest framework, use different serializers in the same ModelViewSet
... 'list'
– Tom Leys
Jul 23 '14 at 23:10
...