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How to pipe input to a Bash while loop and preserve variables after loop ends
...nd in the current shell environment.
Thus, using something like this in a script makes the modfied sum available after the loop:
FILECONTENT="12 Name
13 Number
14 Information"
shopt -s lastpipe # Comment this out to see the alternative behaviour
sum=0
echo "$FILECONTENT" |
while read number name;...
Ruby, Difference between exec, system and %x() or Backticks
... interpolation.
exec
By using Kernel#exec the current process (your Ruby script) is replaced with the process invoked through exec. The method can take a string as argument. In this case the string will be subject to shell expansion. When using more than one argument, then the first one is used to...
Using emit vs calling a signal as if it's a regular function in Qt
...ect slot call? But I have to admit that I also wondered about the question title at first, since I never knew emit was just a no-op. But even in this case reading the question body should have cleared things up, so -1.
– Christian Rau
Apr 15 '12 at 10:22
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Rebasing a branch including all its children
... branch" command output a star before the current branch, screwing up this script if one of the branches to rebase is currently checked out?
– Mark Lodato
Dec 20 '12 at 21:38
...
How to position text over an image in css
...
@KyokaSuigetsu : then you should change question title to contain that you are using html2pdf.
– Harry Joy
Jan 3 '12 at 8:16
add a comment
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difference between offsetHeight and clientHeight
In the javascript dom - what is the difference between offsetHeight and clientHeight of an element?
2 Answers
...
Difference between \A \z and ^ $ in Ruby regular expressions
...ne character, which means they could use an email like me@example.com\n<script>dangerous_stuff();</script> and still have it validate, since the regex only sees everything before the \n.
My recommendation would just be completely stripping new lines from a username or email beforehand, ...
Chrome desktop notification example [closed]
...ermission();
else {
var notification = new Notification('Notification title', {
icon: 'http://cdn.sstatic.net/stackexchange/img/logos/so/so-icon.png',
body: 'Hey there! You\'ve been notified!',
});
notification.onclick = function() {
window.open('http://stackoverflow.com/a/133...
How do I implement __getattribute__ without an infinite recursion error?
... Oh that doesn't quiet work when you run the class though, no? File "Script1.py", line 5, in init self.test = 20 AttributeError: can't set attribute
– Greg
Dec 16 '08 at 17:06
...
How can I change the default width of a Twitter Bootstrap modal box?
... fade" id="ww_vergeten" tabindex="-1" role="dialog" aria-labelledby="modal_title" aria-hidden="true">
<div class="modal-dialog modal-sm"> <!-- property to determine size -->
<div class="modal-content">
<div class="modal-header">
<button type="button"...