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Input from the keyboard in command line application
I am attempting to get the keyboard input for a command line app for the new Apple programming language Swift.
19 Answers
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How do I load the contents of a text file into a javascript variable?
...a text file in the root of my web app http://localhost/foo.txt and I'd like to load it into a variable in javascript.. in groovy I would do this:
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Finding duplicate values in MySQL
I have a table with a varchar column, and I would like to find all the records that have duplicate values in this column. What is the best query I can use to find the duplicates?
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Make $JAVA_HOME easily changable in Ubuntu [closed]
In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6.
8 Answers
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How to perform Unwind segue programmatically?
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1) "File's Owner" -- isn't that old terminology? It worked for me to control drag from the view controller to its Exit icon. 2) Though it ought to be obvious, Xcode is looking for a declaration in the Interface of the IBAction which takes a UIStoryboardSegue argument; the WWDC 20...
Why does Javascript getYear() return 108?
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It's a Y2K thing, only the years since 1900 are counted.
There are potential compatibility issues now that getYear() has been deprecated in favour of getFullYear() - from quirksmode:
To make the matter even more complex, date.getYear...
Can an abstract class have a constructor?
... edited Dec 30 '16 at 1:19
rimsky
1,04322 gold badges1414 silver badges2424 bronze badges
answered Nov 4 '08 at 3:19
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How to remove all whitespace from a string?
... whitespace, use:
gsub("[[:space:]]", "", x) # note the double square brackets
## [1] "xy" "←→" "xy" NA
gsub("\\s", "", x) # same; note the double backslash
library(regex)
gsub(space(), "", x) # same
"[:space:]" is an R-specific regular expression group matching all space cha...
How to find the Windows version from the PowerShell command line
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Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Sep 7 '11 at 7:37
Jeff MercadoJeff M...
Git says “Warning: Permanently added to the list of known hosts”
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Solution: create a ~/.ssh/config file and insert the line:
UserKnownHostsFile ~/.ssh/known_hosts
You will then see the message the next time you access Github, but after that you'll not see it anymore because the host is added to the known_hosts file. This fixes the issue, rather than...