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What is the difference between sed and awk? [closed]
...of awk including mawk and nawk.
Both programs use regular expressions for selecting and processing text.
I would tend to use sed where there are patterns in the text. For example, you could replace all the negative numbers in some text that are in the form "minus-sign followed by a sequence of dig...
How to disable CSS in Browser for testing purposes
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Firebug allows you to selectively disable/enable some selectors and live edit the existing CSS, so in a sense it is possible. For your purpose the Web Developer plugin seems more appropriate though, there you have the option to disable all CSS or ...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
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This worked wonderfully for me as opposed to the selected answer. For some reason "Require all granted" by itself as that answer suggests didn't work as it instantly crashed XAMPP. But this answer worked with those between <directory> so thanks for the answer.
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Laravel Check If Related Model Exists
...method calls through to an Eloquent query Builder, which is set up to only select the related objects. That Builder in turn passes unknown method calls through to its underlying query Builder.
This means you can use the exists() or count() methods directly from a relation object:
$model->relati...
package R does not exist
...ou need to tell your IDE to regenerate these files somehow:
in IntelliJ, select Tools > Android > Generate sources for <project>
(If you know the way in another IDE, feel free to edit this answer!)
share
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JPA getSingleResult() or null
...the query did not match any row or whether the query matched a row but the selected column contains null as its value. from: stackoverflow.com/a/12155901/1242321
– user1242321
Mar 16 '16 at 1:36
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How do I find which program is using port 80 in Windows? [duplicate]
...@{};
Get-Process | ForEach-Object { $proc.Add($_.Id, $_) };
netstat -aon | Select-String "\s*([^\s]+)\s+([^\s]+):([^\s]+)\s+([^\s]+):([^\s]+)\s+([^\s]+)?\s+([^\s]+)" | ForEach-Object {
$g = $_.Matches[0].Groups;
New-Object PSObject |
Add-Member @{ Protocol = $g[1].Value } ...
iOS Simulator failed to install the application
...had to remove folder ~/Library/Application Support/iPhone Simulator/6.0 (I selectively removed for 6.0 - other iOS versions were unaffected in my case).
– mklement0
Aug 2 '13 at 13:53
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Impossible to Install PG gem on my mac with Mavericks
...ks. Here's what I did:
Install the xcode command line tools first:
xcode-select --install
Download and install the latest version of PostgreSQL (9.3.1), in my case I just used the graphical installer. Here's the link to the downloads page:
http://www.enterprisedb.com/products-services-training/...
How to pip or easy_install tkinter on Windows
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When installing make sure that under Tcl/Tk you select Will be installed on hard drive. If it is installing with a cross at the left then Tkinter will not be installed.
The same goes for Python 3:
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