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Using .gitignore to ignore everything but specific directories
... Not these directories
!folder/
# Not these files
!.gitignore
!.env
!file.txt
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How to find patterns across multiple lines using grep?
...e modern Linux systems can be used as
pcregrep -M 'abc.*(\n|.)*efg' test.txt
where -M, --multiline allow patterns to match more than one line
There is a newer pcre2grep also. Both are provided by the PCRE project.
pcre2grep is available for Mac OS X via Mac Ports as part of port pcre2:
% sud...
Is there any way to specify a suggested filename when using data: URI?
... @flyingsheep $('<a href="data:text/plain,Test" download="test.txt">')[0].click() seems to work fine here (Chrome 23) (note: I used the native click method, not jQuery's one). Demo: jsfiddle.net/2zsRW
– Rob W
Dec 6 '12 at 12:34
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Non-alphanumeric list order from os.listdir()
...eving you can do sorted(os.listdir(path))
and for the case of like 'run01.txt' or 'run01.csv' you can do like this
sorted(files, key=lambda x : int(os.path.splitext(x)[0]))
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Selecting empty text input using jQuery
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For me: if($('[id^=txt]').filter(function() { return $(this).val() == ""; }).length > 0) { alert('WARNING'); }
– Cros
Aug 19 '09 at 12:10
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Check if a string has white space
...c.
function checkNumeric() {
var numericVal = document.getElementById("txt_numeric").value;
if(isNaN(numericVal) || numericVal == "" || numericVal == null || numericVal.indexOf(' ') >= 0) {
alert("Please, enter a numeric value!");
isValid = false;
} else {
isV...
How do I run two commands in one line in Windows CMD?
... & to run commands one after another. Example: c:\dir & vim myFile.txt
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Best TCP port number range for internal applications [closed]
...iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt look for the token Unassigned.
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How do I get a file extension in PHP?
...fact a valid type by querying iana.org/assignments/media-types/media-types.txt or by checking your own MimeType Map.
– John Foley
Apr 23 '15 at 1:11
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How do I use Wget to download all images into a single folder, from a URL?
...trc file. This turns off the robot exclusion which means you ignore robots.txt and the robot meta tags (you should know the implications this comes with, take care).
Example: Get all .jpg files from an exemplary directory listing:
$ wget -nd -r -l 1 -A jpg http://example.com/listing/
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