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How to check if string input is a number? [duplicate]
...numeric() will do the job (Documentation for python3.x):
>>>a = '123'
>>>a.isnumeric()
True
But remember:
>>>a = '-1'
>>>a.isnumeric()
False
isnumeric() returns True if all characters in the string are numeric characters, and there is at least one character....
Add up a column of numbers at the Unix shell
...lable on some systems! awk, on the other hand is (I believe) required for POSIX compliance.
– vktec
Jan 1 '17 at 20:23
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show 4 more comment...
Which letter of the English alphabet takes up most pixels?
...
123
Further to Ned Batchelder's awesomely practical answer, because I came here wondering about di...
How to use find command to find all files with extensions from list?
... answered Apr 12 '10 at 11:16
JoseKJoseK
29.9k1313 gold badges9595 silver badges124124 bronze badges
...
Difference between a Structure and a Union
...mber and union uses the largest members memory space. Is there any other OS level difference?
15 Answers
...
Combine --user with --prefix error with setup.py install
...ling multiple packages:
Create ~/.pydistutils.cfg (or equivalent for your OS/platform) with the following contents:
[install]
prefix=
Note that there is no text (not even whitespace) after the =.
Then run the necessary pip install --user or python setup.py install --user commands. Do not forget...
Finding current executable's path without /proc/self/exe
...convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
...
What is Eclipse's Ctrl+O (Show Outline) shortcut equivalent in IntelliJ IDEA?
... See for more shortcuts. At StackOverflow : What are the most useful Intellij IDEA keyboard shortcuts? AT stackoverflow.com/questions/294167/…
– Rites
Dec 22 '09 at 9:40
...
Detect Android phone via Javascript / jQuery
...sh.name';
}
PHP:
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
if(stripos($ua,'android') !== false) { // && stripos($ua,'mobile') !== false) {
header('Location: http://android.davidwalsh.name');
exit();
}
Edit : As pointed out in some comments, this will work in 99% of the cases,...
Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
...paces, try wrapping it with quotes: set "OPENSSL_CONF=C:\OpenSSL Win32\bin 123\openssl.cfg"
– NoOne
Mar 11 '18 at 19:36
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