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Shell command to sum integers, one per line?

...od times. :) – L S Mar 7 '12 at 16:05 2 just used this for a: count all documents’ pages scrip...
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JavaScript isset() equivalent

... the problem with this is that you get an error when you try to check deeper properties, for example: obj.thisdoesntexist.foo !== undefined. In PHP you can use isset or empty and safely at any deep. – Enrique Aug 21 '11 at 16:35...
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While loop to test if a file exists in bash

...some time. PS This also causes an annoying number of "Stale file handler" errors. share | improve this answer | follow | ...
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How to search a specific value in all tables (PostgreSQL)?

... ERROR: syntax error at or near "default" LINE 3: haystack_tables name[] default '{}' (Using PostgreSQL 8.2.17 and cannot upgrade) – Henno May 11 '14 at 8:54 ...
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Java 8 Streams - collect vs reduce

...read and never stored. This code happily generates a java.lang.OutOfMemoryError: Java heap space runtime error, if the file size is large enough or the heap size is low enough. The obvious reason is that it tries to stack all the data that made it through the stream (and, in fact, has already been ...
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How do you iterate through every file/directory recursively in standard C++?

... } while (FindNextFile(hFind, &ffd) != 0); if (GetLastError() != ERROR_NO_MORE_FILES) { FindClose(hFind); return false; } FindClose(hFind); hFind = INVALID_HANDLE_VALUE; } return true; } int main(int argc, char* argv[]) ...
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How can I check if a single character appears in a string?

...) – Felix Neumeyer Oct 18 '15 at 16:05 add a comment  |  ...
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How to format a number as percentage in R?

...ng "x" with "percent(x)" in a statistical or graphing command produces an error message. – rolando2 Jul 20 '14 at 18:31 ...
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Inline labels in Matplotlib

...h Friedlander 5,83444 gold badges1515 silver badges5050 bronze badges answered Sep 9 '16 at 1:27 NauticalMileNauticalMile 1,11922 ...
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Append an object to a list in R in amortized constant time, O(1)?

...eval env_with_list_ 8712.146 9138.250 10185.533 10257.678 10761.33 12058.264 5 c_ 13407.657 13413.739 13620.976 13605.696 13790.05 13887.738 5 list_ 854.110 913.407 1064.463 914.167 1301.50 1339.132 5 by_index 11656.866 11705.140 1218...