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Catching error codes in a shell pipe

...iled" 1>&2 fi else echo "./a failed" 1>&2 fi rm -f $tmp.[12] The '1>&2' redirection can also be abbreviated '>&2'; however, an old version of the MKS shell mishandled the error redirection without the preceding '1' so I've used that unambiguous notation for reliabil...
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Pandas dataframe get first row of each group

...7 4 fifth 8 5 first 9 6 first 10 6 second 11 7 fourth 12 7 fifth share | improve this answer | follow | ...
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jQuery: Get selected element tag name

... tilleryjtilleryj 13.3k22 gold badges2121 silver badges2222 bronze badges 18 ...
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SQL MAX of multiple columns?

...very messy. – Disillusioned Jan 23 '12 at 12:49 5 Necro'ing this older post, but you could wrap e...
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arrayfun can be significantly slower than an explicit loop in matlab. Why?

...s: for i=1:1000 % compute end Some times given below: Soln5 8.192912 seconds. Soln7 13.419675 seconds. Oli 8.089113 seconds. You see that the arrayfun is still bad, but at least not three orders of magnitude worse than the vectorized solution. On the other hand, a single loop with co...
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Disabling and enabling a html input button

... answered Dec 12 '12 at 2:16 palaѕнpalaѕн 62.2k1414 gold badges9191 silver badges117117 bronze badges ...
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An “and” operator for an “if” statement in Bash

... answered Nov 16 '12 at 0:22 William PursellWilliam Pursell 162k4343 gold badges235235 silver badges267267 bronze badges ...
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How to sort an array by a date property

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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g

... | edited Mar 2 '19 at 12:23 xnx 20k77 gold badges5050 silver badges8686 bronze badges answered Jul 1...
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AngularJS changes URLs to “unsafe:” in extension page

... the regex. – Henning Sep 19 '13 at 12:08 29 Note that in Angular 1.2, there are actually two met...