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What's a concise way to check that environment variables are set in a Unix shell script?
...by the wayside. But if you come across a script that starts with a colon, now you will know why.
Position of double quotes
blong asked in a comment:
Any thoughts on this discussion? https://github.com/koalaman/shellcheck/issues/380#issuecomment-145872749
The gist of the discussion is:
… Howe...
Variable declaration placement in C
...n C, all variables had to be declared at the beginning of the function. I know that in C99, the rules are the same as in C++, but what are the variable declaration placement rules for C89/ANSI C?
...
Returning binary file from controller in ASP.NET Web API
...
Would you happen to know when the stream gets closed? I am assuming the framework ultimately calls HttpResponseMessage.Dispose(), which in turn calls HttpResponseMessage.Content.Dispose() effectively closing the stream.
– S...
jquery data selector
... @J-P: Very sweet, I knew I could count on you! Headed to bed now, but I'll try it out tomorrow. Is it possible to do OR operations as well? I don't need it, just curious.
– Tauren
May 24 '10 at 10:34
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How do I ignore files in a directory in Git?
...he .gitignore file. When one of the two mentioned git commands is executed now, the directory will be (unexpectedly) lost.
mkdir test
cd test
git init
echo "/localdata/*" >.gitignore
git add .gitignore
git commit -m "Add .gitignore."
mkdir localdata
echo "Important data" >localdata/important...
Handling an empty UITableView. Print a friendly message
...bleView.emptyDataSetDelegate = self
tableView.tableFooterView = UIView()
Now all you have to do to show the emptystate is:
//Add title for empty dataset
func titleForEmptyDataSet(scrollView: UIScrollView!) -> NSAttributedString! {
let str = "Welcome"
let attrs = [NSFontAttributeName: ...
How to redirect 404 errors to a page in ExpressJS?
I don't know a function for doing this, does anyone know of one?
22 Answers
22
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Squash the first two commits in Git? [duplicate]
...
Update July 2012 (git 1.7.12+)
You now can rebase all commits up to root, and select the second commit Y to be squashed with the first X.
git rebase -i --root master
pick sha1 X
squash sha1 Y
pick sha1 Z
git rebase [-i] --root $tip
This command can ...
Generate Java classes from .XSD files…?
...r.marshal(item, sw);
XML to POJO
Let's reverse the process. Assume that I now have a piece of XML string data and I want to turn it into Item.java object. XML data (Code listing 3) looks like
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns1:item ns1:id="2" xmlns:ns1="http://blo...
Spring MVC @PathVariable getting truncated
... </property>
</bean>
Note that mvc:annotation-driven accepts now a contentNegotiation option to provide a custom bean but the property of RequestMappingHandlerMapping has to be changed to true (default false) (cf. https://jira.springsource.org/browse/SPR-7632).
For that reason, you st...