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How to escape os.system() calls?
... Yes, list2cmdline conforms to Windows cmd.exe syntax (see the function docstring in the Python source code). shlex.quote conforms to Unix bourne shell syntax, however it isn't usually necessary since Unix has good support for directly passing arguments. Windows pretty much requires that you pass a ...
In PHP, can you instantiate an object and call a method on the same line?
... lets you instantiate and use a date object within a single line:
$newDateString = ($d = new DateTime('2011-08-30') ? $d->format('F d, Y') : '');
Another way to one-line the conversion of date strings from one format to another is to use a helper function to manage the OO parts of the code:
f...
How can I find all of the distinct file extensions in a folder hierarchy?
...y uses quotes in the find command. To fix this I would use bash's literal string syntax as so: alias file_ext=$'find . -type f -name "*.*" | awk -F. \'!a[$NF]++{print $NF}\''
– SiegeX
Mar 14 '15 at 6:04
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Example using Hyperlink in WPF
...
If you want to localize string later, then those answers aren't enough, I would suggest something like:
<TextBlock>
<Hyperlink NavigateUri="http://labsii.com/">
<Hyperlink.Inlines>
<Run Text="Click here"/...
Change bundle identifier in Xcode when submitting my first app in IOS
....
Setting the Bundle ID
The default bundle ID in your Xcode project is a string formatted as a reverse-domain—for example, com.MyCompany.MyProductName. To create the default bundle ID, Xcode concatenates the company identifier with the product name you entered when creating the project from a te...
Changed GitHub password, no longer able to push back to the remote
...won't touch your folder, won't touch your commits.
This just delete a url-string from git
Then, add this url again:
>git remote add company https://git.AyCramba.com/xxx.git
Push to it:
>git push company master
username for 'https://git.AyCramba.com':
password for 'https://git.AyCramba.co...
Sorting multiple keys with Unix sort
...file
Not this: sort -k 3 -k 2 < inputfile which sorts the file by the string from the beginning of field 3 to the end of line (which is potentially unique).
-k, --key=POS1[,POS2] start a key at POS1 (origin 1), end it at POS2
(default end of line)
...
Change project name on Android Studio
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don't forget to change app_name in strings.xml, otherwise it will build the apk with the old name
– shabby
Mar 5 '19 at 10:16
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How Big can a Python List Get?
...rted by the platform’s Py_ssize_t type, and thus the maximum size lists, strings, dicts, and many other containers can have.
In my computer (Linux x86_64):
>>> import sys
>>> print sys.maxsize
9223372036854775807
...
ORDER BY the IN value list
...n't need a subquery, we can use the set-returning function like a table.
A string literal to hand in the array instead of an ARRAY constructor may be easier to implement with some clients.
Detailed explanation:
PostgreSQL unnest() with element number
...