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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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Node.js create folder or use existing
...of Node's fs now allows this natively. This option mimics the behaviour of UNIX's mkdir -p. It will recursively make sure every part of the path exist, and will not throw an error if any of them do.
(Note: it might still throw errors such as EPERM or EACCESS, so better still wrap it in a try {} cat...
Git status shows files as changed even though contents are the same
...hat is easy: the first file has CRLF line-ends (windows), the second
LF (Unix). The file util (available in git\usr\bin) will show you that (file a b will reply
something like a: ASCII text, with CRLF line terminators b: ASCII
text)
Original answer below:
The diff you show does not show a...
Hiding a password in a python script (insecure obfuscation only)
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Douglas F Shearer's is the generally approved solution in Unix when you need to specify a password for a remote login.
You add a --password-from-file option to specify the path and read plaintext from a file.
The file can then be in the user's own area protected by the operating sys...