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How do I limit the number of results returned from grep?
... to grep first 2 occurrences across all files. sed documentation: https://www.gnu.org/software/sed/manual/sed.html
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How to kill a child process after a given timeout in Bash?
...y installed otherwise use sudo apt-get install coreutils)
timeout 10 ping www.goooooogle.com
If you don't want to download something, do what timeout does internally:
( cmdpid=$BASHPID; (sleep 10; kill $cmdpid) & exec ping www.goooooogle.com )
In case that you want to do a timeout for long...
REST API Authentication
.... Refer following on how to implement:
Working Link from comments: https://www.ida.liu.se/~TDP024/labs/hmacarticle.pdf
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How do you detect Credit card type based on number?
... }
return sel_brand;
}
Here you can play with it:
http://jsfiddle.net/upN3L/69/
For PHP use this function, this detects some sub VISA/MC cards too:
/**
* Obtain a brand constant from a PAN
*
* @param string $pan Credit card number
* @param bool $include_sub_types I...
Where are the PostgreSQL logs on macOS?
...TF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
[...]
<key>StandardErrorPath</key>
<string>/usr/local/var/postgres/server.log</string>
</dict>
</pli...
Formatting text in a TextBlock
...
a good site, with good explanations:
http://www.wpf-tutorial.com/basic-controls/the-textblock-control-inline-formatting/
here the author gives you good examples for what you are looking for! Overal the site is great for research material plus it covers a great deal of...
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
...d unfortunately the links are broken due to migration of SwingLabs to java.net) technical reasons are for instance mentioned in the Rules (hehe) or in the link @bendicott found in his/her comment to my answer. Socially, posing tons of work onto your unfortunate fellow who has to maintain the code an...
Git diff output to file preserve coloring
...wser so output can be read in Windows etc.
ansi2html code is here: http://www.pixelbeat.org/scripts/ansi2html.sh
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How do I find Waldo with Mathematica?
...rst, I'm filtering out all colours that aren't red
waldo = Import["http://www.findwaldo.com/fankit/graphics/IntlManOfLiterature/Scenes/DepartmentStore.jpg"];
red = Fold[ImageSubtract, #[[1]], Rest[#]] &@ColorSeparate[waldo];
Next, I'm calculating the correlation of this image with a simple bl...
Recursively list all files in a directory including files in symlink directories
...
find -L /var/www/ -type l
# man find
-L Follow symbolic links. When find examines or prints information about files, the information used shall be taken from the
properties of
the file to which the link poi...