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Good example of livelock?
I understand what livelock is, but I was wondering if anyone had a good code-based example of it? And by code-based, I do not mean "two people trying to get past each other in a corridor". If I read that again, I'll lose my lunch.
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Why should eval be avoided in Bash, and what should I use instead?
Time and time again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
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Appending the same string to a list of strings in Python
I am trying to take one string, and append it to every string contained in a list, and then have a new list with the completed strings. Example:
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster?
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Process all arguments except the first one (in a bash script)
I have a simple script where the first argument is reserved for the filename, and all other optional arguments should be passed to other parts of the script.
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Logic to test that 3 of 4 are True
I want to return True if and only if 3 out of 4 boolean values are true.
27 Answers
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Determine Whether Integer Is Between Two Other Integers?
How do I determine whether a given integer is between two other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
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Sorting multiple keys with Unix sort
I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
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Best way to simulate “group by” from bash?
Suppose you have a file that contains IP addresses, one address in each line:
14 Answers
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Is there a common Java utility to break a list into batches?
I wrote myself a utility to break a list into batches of given size. I just wanted to know if there is already any apache commons util for this.
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