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Convert decimal to hexadecimal in UNIX shell script

... echo "obase=16; 34" | bc If you want to filter a whole file of integers, one per line: ( echo "obase=16" ; cat file_of_integers ) | bc share | ...
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How to read a local text file?

...e.onreadystatechange = function () { if(rawFile.readyState === 4) { if(rawFile.status === 200 || rawFile.status == 0) { var allText = rawFile.responseText; alert(allText); } } } rawFile.send(null)...
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UnicodeDecodeError, invalid continuation byte

... Josh LeeJosh Lee 141k3030 gold badges245245 silver badges258258 bronze badges ...
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How to set up a cron job to run an executable every hour?

... 4 You're right. && is much better if there is a chance the cd target doesn't exist (for example if the diretory is on an NFS server th...
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Type-juggling and (strict) greater/lesser-than comparisons in PHP

...g NAN is always false is not specific to PHP. It is mandated by the IEEE 754 Standard for Floating-Point Arithmetic (more info). PHP's == operator is symmetric, i.e. $a == $b and $b == $a are always the same. PHP's == operator is not transitive, i.e. from $a == $b and $b == $c does not follows $a ==...
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sprintf like functionality in Python

... | edited Dec 14 '12 at 12:25 answered Mar 15 '11 at 9:57 ...
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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?

... nbro 10.9k1717 gold badges7676 silver badges140140 bronze badges answered Mar 11 '10 at 23:52 Alex MartelliAlex Martelli 72...
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Focus-follows-mouse (plus auto-raise) on Mac OS X

... Mathias Bynens 124k4848 gold badges203203 silver badges238238 bronze badges answered Sep 19 '08 at 0:27 Clint EckerCli...
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How would you count occurrences of a string (actually a char) within a string?

...ion does. – Peter Lillevold May 7 '14 at 9:03 5 f == '\' is about chars in a string, not strings...
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Getting the ID of the element that fired an event

...| edited May 15 '19 at 5:24 Jack Bashford 37.2k1010 gold badges3535 silver badges5959 bronze badges answ...