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Linux/Unix command to determine if process is running?
...nd non-zero if it isn't. The POSIX spec says that ps must exit >0 if an error has occurred but it is unclear to me what constitutes 'an error'. Therefore I'm not personally using that strategy although I'm pretty sure it will work as well on all Unix/Linux platforms.
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Only read selected columns
Can anyone please tell me how to read only the first 6 months (7 columns) for each year of the data below, for example by using read.table() ?
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How to check the version before installing a package using apt-get?
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answered Sep 19 '13 at 7:05
Yasiru GYasiru G
5,70955 gold badges1616 silver badges3636 bronze badges
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What is an xs:NCName type and when should it be used?
...:NCName
– WeizhongTu
Mar 5 '18 at 7:05
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How to convert a std::string to const char* or char*?
...ntrol'
Con
Requires string copy
Maximum liability / susceptibility for errors
Complex
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How do I iterate through each element in an n-dimensional matrix in MATLAB?
...ay(:)',
element = element + idx;
end
UPD. tnx @rayryeng for detected error in last answer
Disclaimer
The timing information that this post has referenced is incorrect and inaccurate due to a fundamental typo that was made (see comments stream below as well as the edit history - specificall...
What is %2C in a URL?
...# | 43 | C | 63 | c |
| 04 | EOT | 24 | $ | 44 | D | 64 | d |
| 05 | ENQ | 25 | % | 45 | E | 65 | e |
| 06 | ACK | 26 | & | 46 | F | 66 | f |
| 07 | BEL | 27 | ' | 47 | G | 67 | g |
| 08 | BS | 28 | ( | 48 | H | 68 | h |
| 09 | TAB | 29 | ) | 49 | I | 69 |...
Why no generics in Go?
...mation gets lost. A cast will not help much because you will get a runtime error.
– Ian
Sep 4 '13 at 20:16
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Python: split a list based on a condition?
...where it's needed, thus reducing the likelihood for introducing typos/user error. Nice solution. Thanks!
– cod3monk3y
Nov 16 '13 at 21:08
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SQL select join: is it possible to prefix all columns as 'prefix.*'?
..., the main table's field values are overriden with the joinedtable values. Error prone, frustrating and a violation of DRY when having to manually specify the table fields with aliases over and over...
Here is a PHP (Wordpress) function to achieve this through code generation together with an examp...