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How can I delete a newline if it is the last character in a file?
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perl -pie 'chomp if eof' filename -> Can't open perl script "chomp if eof": No such file or directory; perl -pi -e 'chomp if eof' filename -> works
– aditsu quit because SE is EVIL
May 1 '13 at 1:29
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How do I determine k when using k-means clustering?
... and keep removing centroids (reducing k) until it no longer reduces the description length. See "MDL principle for robust vector quantisation" by Horst Bischof, Ales Leonardis, and Alexander Selb in Pattern Analysis and Applications vol. 2, p. 59-72, 1999.
Finally, you can start with one cluster,...
querySelector, wildcard element match?
... question, aka have RegEx-like matches with querySelector() in vanilla Javascript
Hoping the following will be useful & fit the OP's needs or everyone else's:
// basically, of before:
var youtubeDiv = document.querySelector('iframe[src="http://www.youtube.com/embed/Jk5lTqQzoKA"]')
// after ...
How do I improve ASP.NET MVC application performance?
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request (i.e. Flex charting, jqbargraph, MoreJqueryCharts).
Use CDN's for scripts and media content to improve loading on the client side (i.e. Google CDN)
Minify -Compile- your JavaScript in order to improve your script size
Keep cookie size small, since cookies are sent to the server on every re...
Adding data attribute to DOM
...r(function(){
return $(this).data('info') == 1;
}).text('222');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>1</div>
share
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Is it possible to push a git stash to a remote repository?
...ranch): WIP on sehe: 7006283 fixed wrong path to binary in debianized init script (reported as part of issue
stash@{3}: On (no branch): WIP on debian-collab: c5c8037 zfs_pool_alert should be installed by default
stash@{4}: On (no branch): WIP on xattrs: 3972694 removed braindead leftover -O0 flag
st...
Bash script absolute path with OS X
I am trying to obtain the absolute path to the currently running script on OS X.
15 Answers
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How to tell if a string is not defined in a Bash shell script
...se it echoes nothing) "VAR is set but its value might be empty". Try this script:
(
unset VAR
if [ -z "${VAR+xxx}" ]; then echo JL:1 VAR is not set at all; fi
if [ -z "${VAR}" ]; then echo MP:1 VAR is not set at all; fi
VAR=
if [ -z "${VAR+xxx}" ]; then echo JL:2 VAR is not set at all; fi
if [ ...
Sorting multiple keys with Unix sort
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Whoops! Now I have to fix a script because earlier I only saw the first answer above...good thing I haven't depended on the script output yet....
– Wildcard
Nov 5 '15 at 6:22
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Customizing Bootstrap CSS template
... <link rel="stylesheet/less" href="/path/to/bootstrap.less">
<script src="/path/to/less.js"></script>
To recompile the .less files, just save them and reload your page. Less.js compiles them and stores them in local storage.
Or if you prefer to statically compile a new ...