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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
...ck) issue the command to get a dump of the master:
mysqldump -u root -p --all-databases > /a/path/mysqldump.sql
Now you can release the lock, even if the dump hasn't ended yet. To do it, perform the following command in the MySQL client:
UNLOCK TABLES;
Now copy the dump file to the slave us...
How to use the “required” attribute with a “radio” input field
...tribute for at least one input of the radio group.
Setting required for all inputs is more clear, but not necessary (unless dynamically generating radio-buttons).
To group radio buttons they must all have the same name value. This allows only one to be selected at a time and applies required to ...
How do I clone into a non-empty directory?
... will set the upstream branch for you, if that is what you want, and it usually is.
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Git in Powershell saying 'Could not find ssh-agent'
I have git installed and it works great in the command prompt, but when I open up powershell it gives me this warning:
6 An...
Bash: Strip trailing linebreak from output
...
If your expected output is a single line, you can simply remove all newline characters from the output. It would not be uncommon to pipe to the 'tr' utility, or to Perl if preferred:
wc -l < log.txt | tr -d '\n'
wc -l < log.txt | perl -pe 'chomp'
You can also use command substit...
Why does “split” on an empty string return a non-empty array?
...ngleton array containing just the input string is returned,
Second, remove all the rightmost empty strings. This is the reason ",,,".split(",") returns empty array.
According to this, the result of "".split(",") should be an empty array because of the second step, right?
It should. Unfortunately,...
Change multiple files
...ot even just a builtin. For sed -i 's/old/new' *, the expansion of * must ALL be passed as an arglist to sed, and I'm fairly sure this has to happen before the sed process can even be started. Using the for loop, the full arglist (the expansion of *) never gets passed as a command, only stored in ...
node.js shell command execution
... you are expecting synchronous behavior while using stdout asynchronously. All of the calls in your run_cmd function are asynchronous, so it will spawn the child process and return immediately regardless of whether some, all, or none of the data has been read off of stdout. As such, when you run
co...
What is the difference between async.waterfall and async.series
... https://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series .
4 Answers
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Cycles in family tree software
...this format contains some severe misconceptions about what a family tree really looks like.
GEDCOM has many issues, such as incompatibility with same sex relations, incest, etc... Which in real life happens more often than you'd imagine (especially when going back in time to the 1700-1800).
We hav...