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SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
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The command to do this is:
rvm install 2.2.0 --disable-binary
if you already have the version in question, you can re-install it with:
rvm reinstall 2.2.0 --disable-binary
(obviously, substitute your ruby version as needed).
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How do you get a list of the names of all files present in a directory in Node.js?
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You can use the fs.readdir or fs.readdirSync methods.
fs.readdir
const testFolder = './tests/';
const fs = require('fs');
fs.readdir(testFolder, (err, files) => {
files.forEach(file => {
console.log(file);
});
});
fs.readdirS...
MySQL Workbench: How to keep the connection alive
...-> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MySQL Workbench. Kill your previously query that
probably is running and run the query again.
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How to count number of files in each directory?
... the directories and let bash do the rest:
find . -type d -print0 | while read -d '' -r dir; do
files=("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done
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imp...
Is there still any reason to learn AWK?
...he command line.
But the real reason to learn awk is to have an excuse to read the superb book The AWK Programming Language by its authors Aho, Kernighan, and Weinberger. You would think, from the name, that it simply teaches you awk. Actually, that is just the beginning. Launching into the vast...
What is a lambda (function)?
...e way as anonymous delegates, but it can also be broken down and its logic read.
For instance (in C#3):
LinqToSqlContext.Where(
row => row.FieldName > 15 );
LinqToSql can read that function (x > 15) and convert it to the actual SQL to execute using expression trees.
The statement ...
Is a LINQ statement faster than a 'foreach' loop?
... you care much about performance. Use LINQ because you want shorter better readable and maintainable code.
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Where can I learn jQuery? Is it worth it?
...alls a little flat is with its UI components. Those don't seem to be quite ready for primetime just yet.
It could be that Prototype or MooTools or ExtJS are as good as jQuery. But for me, jQuery seems to have a little more momentum behind it right now and that counts for something for me.
Check ...
Why is Dictionary preferred over Hashtable in C#?
... differences:
Generic <<<>>> Non-Generic
Needs own thread synchronization <<<>>> Offers thread safe version through Synchronized() method
Enumerated item: KeyValuePair <<<>>> Enumerated item: DictionaryEntry
Newer (> .NET 2.0) <<<...
How to pretty print XML from the command line?
...;/root>' |
python -c 'import sys;import xml.dom.minidom;s=sys.stdin.read();print(xml.dom.minidom.parseString(s).toprettyxml())'
saxon-lint
You need saxon-lint:
echo '<root><foo a="b">lorem</foo><bar value="ipsum" /></root>' |
saxon-lint --indent --xpath '...