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Extract substring using regexp in plain bash

... 211 Using pure bash : $ cat file.txt US/Central - 10:26 PM (CST) $ while read a b time x; do [[ $b...
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What is the relative performance difference of if/else versus switch statement in Java?

... 111 That's micro optimization and premature optimization, which are evil. Rather worry about reada...
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How to iterate over associative arrays in Bash

... 591 The keys are accessed using an exclamation point: ${!array[@]}, the values are accessed using ${...
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How do I break out of a loop in Perl?

... | edited Jan 5 '18 at 17:41 Alexander Roskamp 2766 bronze badges answered Nov 19 '08 at 20:23 ...
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php: determine where function was called from

... 129 You can use debug_backtrace(). Example: <?php function epic( $a, $b ) { fail( $a . '...
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Font Awesome not working, icons showing as squares

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What is the fastest way to create a checksum for large files in C#

... 119 The problem here is that SHA256Managed reads 4096 bytes at a time (inherit from FileStream and...
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convert '1' to '0001' in JavaScript [duplicate]

How can I convert convert '1' to '0001' in JavaScript without using any 3rd party libraries. I have done this in php using spritf: $time = sprintf('%04.0f',$time_arr[$i]); ...
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Check if UIColor is dark or bright?

... 14 Answers 14 Active ...