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What command means “do nothing” in a conditional in Bash?

... you say do nothing when X, then rephrase it as avoid a branch where X. Usually you can make the avoidance happen by simply negating X and applying it to all other conditions. So the OPs example with the rule applied may be restructured as: if [ "$a" -lt 10 ] && [ "$a" -le 5 ] then ech...
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How can I add an animation to the activity finish()

... I override pending transition just after calling finish(); In my case, I have done it to avoid transitions. finish(); Details.this.overridePendingTransition(R.anim.nothing,R.anim.nothing); Order is important :) ...
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Gem::LoadError for mysql2 gem, but it's already in Gemfile

...eptember 2015 so use the above line in your Gem file and run: bundle install You should be good to go share | improve this answer | follow | ...
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Does a “Find in project…” feature exist in Eclipse IDE?

...ic expression searches, choose the relevant tab (such as Java Search which allows you to search for specific identifiers) For whole project search: 3. Scope (in the form section) > Enclosing project (Radio button selection). ...
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Delete files older than 3 months old in a directory using .NET

... What does the .ToList() call add other than a second loop through the matched files? – Joel Mueller Feb 8 '10 at 21:23 2 ...
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What does the ng stand for in Angular.js directives

... The prefix ng stands for "Angular;" all of the built-in directives that ship with Angular use that prefix. Similarly, it is recommended that you do not use the ng prefix on your own directives in order to avoid possible name collisions in future versions of Ang...
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Android Studio: Module won't show up in “Edit Configuration”

...or me just clicking the "Sync Project with Gradle Files" fixed it. I was really worried I had busted things beyond repair. – startoftext Aug 17 '15 at 6:13 ...
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Under what conditions is a JSESSIONID created?

...s created/sent when session is created. Session is created when your code calls request.getSession() or request.getSession(true) for the first time. If you just want to get the session, but not create it if it doesn't exist, use request.getSession(false) -- this will return you a session or null. In...
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REST HTTP status codes for failed validation or invalid duplicate

...of issue. The only other alternative is 422 Unprocessable Entity. It actually comes from WebDav but it is perfectly valid to reuse any status code that has been registered with IANA. – Darrel Miller Jul 20 '10 at 19:38 ...
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Capturing TAB key in text box [closed]

...ng to the next item in the tab order, from occurring. In Firefox you can call the preventDefault() method on the event object passed to your event handler. In IE, you have to return false from the event handle. The JQuery library provides a preventDefault method on its event object that works in IE...