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Linux Shell脚本参数的获取方法 - 脚本技术 - 清泛IT社区，为创新赋能！
...$# 参数个数（脚本名除外）
$? 取上个命令退出码（exit xx, 函数return xx）一般0成功,1失败
#!/bin/sh
echo 'file name:' $0
echo 'param num: ' $#
if [ $# -gt 1 ]; then
echo 'the second param:' $2
fi
复制代码./param.sh
file name: ./param.sh
param num: 0
...
Linux 堆内存快照可视化，快照比较，跟踪内存变化，定位内存泄漏等问题 - ...
...; #29 2^29内存满了重新打一个.heap快照文件
jeprof xxx -pdf xxx.heap > 1.pdf #分析.heap文件，可视化生成pdf
jeprof xxx -pdf --base xx1.heap xx2.heap > 2.pdf # 比较2个.heap快照文件，分析差别
安装依赖库：
gperfto...
LINQ to Entities does not recognize the method
...
I got the same error in this code:
var articulos_en_almacen = xx.IV00102.Where(iv => alm_x_suc.Exists(axs => axs.almacen == iv.LOCNCODE.Trim())).Select(iv => iv.ITEMNMBR.Trim()).ToList();
this was the exactly error:
System.NotSupportedException: 'LINQ to Entities does not...
convert '1' to '0001' in JavaScript [duplicate]
...adder(4);
zero4.pad(12); // "0012"
zero4.pad(12345); // "12345"
zero4.pad("xx"); // "00xx"
var x3 = new Padder(3, "x");
x3.pad(12); // "x12"
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How do I disable form resizing for users? [duplicate]
...ile keeping the form default FormBorderStyle.
this.MaximumSize = new Size(XX, YY);
this.MinimumSize = new Size(X, Y);
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How to include file in a bash shell script
... . ./b.sh to include.
When run script out of the folder, for example with xx/xx/xx/a.sh, file b.sh will not found: ./b.sh: No such file or directory.
I use
. $(dirname "$0")/b.sh
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Replacing NAs with latest non-NA value
...
x = c(NA,NA,'a',NA,NA,NA,NA,NA,NA,NA,NA,'b','c','d',NA,NA,NA,NA,NA,'e')
xx = rep(x, 1000000)
system.time({ yzoo = na.locf(xx,na.rm=F)})
## user system elapsed
## 2.754 0.667 3.406
system.time({ yrep = repeat.before(xx)})
## user system elapsed
## 0.597 0.199 0.793
Ed...
Which MySQL datatype to use for an IP address? [duplicate]
...address in $_SERVER['REMOTE_ADDR']. And how could I convert something like xxx.xx.xx.xxx into an integer (4 bytes) like you said?
– ComFreek
Feb 27 '11 at 14:00
...
What does multicore assembly language look like?
... Broadcast INIT IPI to all APs
; 10-millisecond delay loop.
MOV EAX, 000C46XXH ; Load ICR encoding for broadcast SIPI IP
; to all APs into EAX, where xx is the vector computed in step 10.
MOV [ESI], EAX ; Broadcast SIPI IPI to all APs
; 200-microsecond delay loop
MOV [ESI],...
HTTP response code for POST when resource already exists
...(server or client or both)
If server just point the duplicate, look at 4xx:
400 Bad Request - when the server will not process a request because it's obvious client fault
409 Conflict - if the server will not process a request, but the reason for that is not the client's fault
...
For implic...
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