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How do I edit /etc/sudoers from a script?
...make your edits to a temporary file, then use visudo -c -f sudoers.temp to confirm that the changes are valid and then copy it over the top of /etc/sudoers
#!/bin/sh
if [ -f "/etc/sudoers.tmp" ]; then
exit 1
fi
touch /etc/sudoers.tmp
edit_sudoers /tmp/sudoers.new
visudo -c -f /tmp/sudoers.new
i...
How to best position Swing GUIs?
...bles a native window shown without programmatically setting its location. Most windowing systems cascade windows if their locations are not explicitly set. The actual location is determined once the window is shown on the screen.
Have a look at the effect of this example that puts 3 GUIs into the...
How do I remove the “extended attributes” on a file in Mac OS X?
... script that runs a stress test. Part of the test is to open, save, and close certain files. Somehow, the files have picked up some "extended attributes" that prohibit the files from being saved. That causes the stress test to fail.
...
Normalizing mousewheel speed across browsers
For a different question I composed this answer , including this sample code .
10 Answers
...
Can't install PIL after Mac OS X 10.9
I've just updated my Mac OS to 10.9 and I discovered that some (all?) of my Python modules are not here anymore, especially the Image one.
...
How do I set up a simple delegate to communicate between two view controllers?
...(MyDatatwo*) dataTwo;
@end
Import MyFirstControllerDelegate.h file and confirm your FirstController with protocol MyFirstControllerDelegate
#import "MyFirstControllerDelegate.h"
@interface FirstController : UIViewController<MyFirstControllerDelegate>
{
}
@end
In the implementation f...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?
... out on my own, but only after Lucian Wischik from the VB part of the team confirmed that there really is a good reason for it. Many thanks to him - and please visit his blog, which rocks.
The value 0 here is only special because it's not a valid state which you might be in just before the await in...
Vim search and replace selected text
..., you will be prompted to enter text to replace with. Press enter and then confirm each change you agree with y or decline with n.
This command will override your register h so you can choose other one (by changing h in the command above to another lower case letter) that you don't use.
...
How can I remove a trailing newline?
...ut record separator like awk and Perl have.
– Peter Hosey
Nov 9 '08 at 6:13
7
@csde_rats, that's ...