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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...件服务器，公司全部员工使用统一的域名，内网IP为：192.168.0.115
操作系统：RHEL5
所用软件列表：
mysql-5.5.20
postfix-2.9.1
courier-authlib-0.62.4.tar.bz2
extmail-1.2.tar.gz
extman-1.1.tar.gz
Unix-Syslog-1.1.tar.gz
perl-GD-2.35-1.el5.rf.i386.rpm...
Batch files - number of command line arguments
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nimrodmnimrodm
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Is there a simple way to delete a list element by value?
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21 Answers
21
Active
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Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
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How can I create a Set of Sets in Python?
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121
Python's complaining because the inner set objects are mutable and thus not hashable. The solut...
How to capitalize first letter of each word, like a 2-word city? [duplicate]
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edited Aug 23 '18 at 15:36
Max Favilli
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Pandas every nth row
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207
I'd use iloc, which takes a row/column slice, both based on integer position and following nor...
PHP case-insensitive in_array function
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102
you can use preg_grep():
$a= array(
'one',
'two',
'three',
'four'
);
print_r( preg_grep( "...
How to swap the buffers in 2 windows emacs
I am using emacs I find that sometimes I have 2 files separated into 2 windows.
8 Answers
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How to get first and last day of previous month (with timestamp) in SQL Server
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228
select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0) --First day of previous month
select...