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Should switch statements always contain a default clause?
...n type! based on the language,
// there should probably be some error-handling
// here, maybe an exception
}
2. To handle 'default' actions, where the cases are for special behavior.
You see this a LOT in menu-driven programs and bash shell scripts. You might also see this when a ...
puts vs logger in rails rake tasks
...
Put this in application.rb, or in a rake task initialize code
if defined?(Rails) && (Rails.env == 'development')
Rails.logger = Logger.new(STDOUT)
end
This is Rails 3 code. Note that this will override logging to development.log. If you wan...
Any decent text diff/merge engine for .NET? [closed]
...
You can grab the COM component that uses Google's Diff/Patch/Match. It works from .NET.
Update, 2010 Oct 17: The Google Diff/Patch/Merge code has been ported to C#. The COM component still works, but if you're coming from .NET, you'll wanna use the .NET port directly.
...
Back to previous page with header( “Location: ” ); in PHP
...question kind of explains my question. How do I redirect the PHP page visitor back to their previous page with the header( "Location: URL of previous page" );
...
How can I remove the first line of a text file using bash/sed script?
... BSD and the -n +2 flag is consistent across both tools. Check the FreeBSD or OS X man pages for more.
The BSD version can be much slower than sed, though. I wonder how they managed that; tail should just read a file line by line while sed does pretty complex operations involving interpreting a sc...
Add … if string is too long PHP [duplicate]
...s a fixed width, the browser will automatically break off and add the ... for you.
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write a shell script to ssh to a remote machine and execute commands
.... How can this be done using shell scripting?
You can do this with ssh, for example:
#!/bin/bash
USERNAME=someUser
HOSTS="host1 host2 host3"
SCRIPT="pwd; ls"
for HOSTNAME in ${HOSTS} ; do
ssh -l ${USERNAME} ${HOSTNAME} "${SCRIPT}"
done
When ssh'ing to the remote machine, how to handle wh...
Test if object implements interface
...
if (object is IBlah)
or
IBlah myTest = originalObject as IBlah
if (myTest != null)
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How can I replace every occurrence of a String in a file with PowerShell?
...mp\test.txt).replace('[MYID]', 'MyValue') | Set-Content c:\temp\test.txt
Or for V2:
(Get-Content c:\temp\test.txt) -replace '\[MYID\]', 'MyValue' | Set-Content c:\temp\test.txt
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How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
A common trick for vertical positioning elements is to use the following CSS:
7 Answers
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