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Deploy a project using Git push
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answered Nov 29 '08 at 7:37
Kyle CroninKyle Cronin
71.3k3939 gold badges143143 silver badges157157 bronze badges
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Why em instead of px?
...for a particular pixel size, then specify it in pixels. Ie, if you want 990px, then put 990px. If pixels is what you want, why not use them?
– thomasrutter
Jul 29 '09 at 6:09
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Finding duplicate values in a SQL table
...consistent:
Recent PostgreSQL supports it.
SQL Server (as at SQL Server 2017) still requires all non-aggregated columns in the GROUP BY.
MySQL is unpredictable and you need sql_mode=only_full_group_by:
GROUP BY lname ORDER BY showing wrong results;
Which is the least expensive aggregate function...
What's the right way to decode a string that has special HTML entities in it? [duplicate]
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409
This is my favourite way of decoding HTML characters. The advantage of using this code is that ...
Windows batch: sleep [duplicate]
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You can try
ping -n XXX 127.0.0.1 >nul
where XXX is the number of seconds to wait, plus one.
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How to calculate number of days between two dates
...put dates taking from Date Picker control. I have selected start date 2/2/2012 and end date 2/7/2012. I have written following code for that.
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unable to copy/paste in mingw shell
...xt using the ENTER key.
This procedure works on Windows 7/8, not Windows 10.
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How to find if div with specific id exists in jQuery?
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10 Answers
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Is a Java hashmap search really O(1)?
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edited Nov 23 '15 at 0:59
worldofjr
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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！
$0 (脚本名)，$1-$9 参数$# 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...