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What is a unix command for deleting the first N characters of a line?
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answered Jun 9 '09 at 19:06
iammichaeliammichael
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Get underlying NSData from UIImage
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192
NSData *imageData = UIImageJPEGRepresentation(image, 0.7); // 0.7 is JPG quality
or
NSData ...
Rounding BigDecimal to *always* have two decimal places
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1 Answer
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Using sed, how do you print the first 'N' characters of a line?
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211
Don't use sed, use cut:
grep .... | cut -c 1-N
If you MUST use sed:
grep ... | sed -e 's/^\...
Duplicate headers received from server
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edited May 23 '17 at 12:18
Community♦
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answered Feb 12 '13 at 16:10
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
... Data FAQ上有其性能描述（http://msdn.microsoft.com/en-us/library/aa140060(v=office.10).aspx#odc_xlrtdfaq_whatisrtd），据说在一台配置为 Pentium III 500 MHz 的CPU和 128 MB 内存的电脑上，RTD可以在一秒内对20000个独立的主题（topic）更新三次，对于单独一...
How to get the start time of a long-running Linux process?
...,lstart,cmd
PID CMD STARTED
1 Tue Jun 7 01:29:38 2016 /sbin/init
2 Tue Jun 7 01:29:38 2016 [kthreadd]
3 Tue Jun 7 01:29:38 2016 [ksoftirqd/0]
5 Tue Jun 7 01:29:38 2016 [kworker/0:0H] ...
how to change an element type using jquery
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11 Answers
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Reusable library to get human readable version of file size?
... unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
if abs(num) < 1024.0:
return "%3.1f%s%s" % (num, unit, suffix)
num /= 1024.0
return "%.1f%s%s" % (num, 'Yi', suffix)
Supports:
all currently known binary prefixes
negative and positive numbers
numbers larger tha...
How to execute ipdb.set_trace() at will while running pytest tests
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154
The error is raised because of py.test capturing output.
You should run py.test with -s optio...