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How to convert date to timestamp in PHP?
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This method works on both Windows and Unix and is time-zone aware, which is probably what you want if you work with dates.
If you don't care about timezone, or want to use the time zone your server uses:
$d = DateTime::createFromFormat('d-m-Y H:i:s', '22-09-200...
How to output MySQL query results in CSV format?
... this is a preferred solution: 1) tab-separated-value lists are common in UNIX 2) TSV imports are natively supported by most import systems, including Excel, OpenOffice Spreadsheets, etc. 3) no need to escape quote characters for text fields 4) makes command-line exports a breeze
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Delete directories recursively in Java
...e more thorough. It handles things like symbolic links correctly on Linux/Unix. svn.apache.org/viewvc/commons/proper/io/trunk/src/java/org/…
– Steve K
Apr 22 '09 at 22:48
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In Python, how do you convert a `datetime` object to seconds?
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To get the Unix time (seconds since January 1, 1970):
>>> import datetime, time
>>> t = datetime.datetime(2011, 10, 21, 0, 0)
>>> time.mktime(t.timetuple())
1319148000.0
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Why does sed not replace all occurrences?
...g:g'
For a fantastic documentation on sed, check http://www.grymoire.com/Unix/Sed.html. This global flag is explained here: http://www.grymoire.com/Unix/Sed.html#uh-6
The official documentation for GNU sed is available at http://www.gnu.org/software/sed/manual/
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How to compare strings in Bash
...omise! are - can be - easy to read!
(I don't have one, but I think being a UNIX veteran with grey beard helps a lot with this.)
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What is RSS and VSZ in Linux memory management
...r threads in the process. Use ps or top to view this information in linux/unix.
There is way more to it than this, to learn more check the following references:
http://manpages.ubuntu.com/manpages/en/man1/ps.1.html
https://web.archive.org/web/20120520221529/http://emilics.com/blog/article/mconsu...
How to set current working directory to the directory of the script in bash?
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Try the following simple one-liners:
For all UNIX/OSX/Linux
dir=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
Bash
dir=$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)
Note: A double dash (--) is used in commands to signify the end of command...
How to install pip with Python 3?
...lready have pip installed. If you do not, read onward.
If you're running a Unix-like System
You can usually install the package for pip through your package manager if your version of Python is older than 2.7.9 or 3.4, or if your system did not include it for whatever reason.
Instructions for some o...
How to recursively find and list the latest modified files in a directory with subdirectories and ti
...multiple line. Use touch "lala<Enter>b" to create such file. I think unix utilities design has big flaw about filename.
– Fruit
Apr 20 '16 at 6:48
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