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How to get the start time of a long-running Linux process?
... with formatters to get PID, command run, and date+time started.
Example (from Debian/Jessie command line)
$ ps -eo pid,lstart,cmd
PID CMD STARTED
1 Tue Jun 7 01:29:38 2016 /sbin/init
2 Tue Jun 7 01:29:38 2016 [kthreadd] ...
How to change Git log date formats
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The others are (from git help log):
--date=(relative|local|default|iso|rfc|short|raw)
Only takes effect for dates shown in human-readable format,
such as when using "--pretty". log.date config variable
sets a default value for log co...
Detect URLs in text with JavaScript
...kifiers I use (Gmail, etherpad, phabricator) separate trailing punctuation from the URL.
– skierpage
Jul 30 '15 at 19:01
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How can I convert byte size into a human-readable format in Java?
... is there a utility to do the reverse operation. Getting byte count from human readable byte count?
– arunmoezhi
Jun 24 '15 at 19:02
6
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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
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@sudo No, BMP sure is easy to decode from a processing perspective, but unless it's stored locally on an SSD, I'd assume getting the file to the CPU to process will be slower than just processing a JPG, especially on a properly-written JPG decoder that uses hard...
How does a Java HashMap handle different objects with the same hash code?
...f HashMap's mechanism, for Java 8 version, (it might be slightly different from Java 6).
Data structures
Hash table
Hash value is calculated via hash() on key, and it decide which bucket of the hashtable to use for a given key.
Linked list (singly)
When count of elements in a bucket is small, a...
Setting unique Constraint with fluent API?
... Not if you want to keep your domain model completely separate from storage concerns.
– Rickard Liljeberg
Oct 26 '14 at 20:40
4
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How to extract a string using JavaScript Regex?
I'm trying to extract a substring from a file with JavaScript Regex. Here is a slice from the file :
5 Answers
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How do I get the opposite (negation) of a Boolean in Python?
...__invert__ like that could be confusing because it's behavior is different from "normal" Python behavior. If you ever do that clearly document it and make sure that it has a pretty good (and common) use-case.
share
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Best way to convert strings to symbols in hash
...s the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?
31 Answers
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