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How to convert timestamps to dates in Bash?
I need a shell command or script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
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Avoid synchronized(this) in Java?
Whenever a question pops up on SO about Java synchronization, some people are very eager to point out that synchronized(this) should be avoided. Instead, they claim, a lock on a private reference is to be preferred.
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How to copy from CSV file to PostgreSQL table with headers in CSV file?
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This worked. The first row had column names in it.
COPY wheat FROM 'wheat_crop_data.csv' DELIMITER ';' CSV HEADER
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How to exit from PostgreSQL command line utility: psql
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TSQL Pivot without aggregate function
...AX of one value = that value..
In this case, you could also self join 5 times on customerid, filter by dbColumnName per table reference. It may work out better.
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How can I format a String number to have commas and round?
What is the best way to format the following number that is given to me as a String?
10 Answers
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Is there a way to use shell_exec without waiting for the command to complete?
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How about adding.
"> /dev/null 2>/dev/null &"
shell_exec('php measurePerformance.php 47 844 email@yahoo.com > /dev/null 2>/dev/null &');
Note this also gets rid of the stdio and stderr.
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How to check if mysql database exists
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SELECT SCHEMA_NAME
FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME = 'DBName'
If you just need to know if a db exists so you won't get an error when you try to create it, simply use (From here):
CREATE DATABASE IF NOT EXISTS DBName;...
How do I get a PHP class constructor to call its parent's parent's constructor?
... good workaround, but it is not acceptable if the parent class comes from some external library wish you with to extend. I like the too much php answer below.
– Kostanos
Jul 11 '13 at 15:26
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Undo a merge by pull request?
Someone accepted a pull request which they shouldn't have. Now we have a bunch of broken code merged in. How do you undo a pull request? I was just going to revert the changes to the commit just before the merge, but I noticed that it merged in a bunch of commits. So now there are all these commits ...