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find: missing argument to -exec
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I really confused. find /etc/nginx -name '*.conf' -exec echo {} ; and find /etc/nginx -name '*.conf' -exec echo {}\; gave the same result. :(
– Kirby
Mar 14 '16 at 22:19
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How do I show/hide a UIBarButtonItem?
...TextAttributes :- This works great on bar button items like "Done", "Save" etc. However, it does not work on items like Add, Trash symbol etc.(atleast not for me) since they are not texts.
use TintColor :- If I have a bar button item called "deleteButton" :-
To hide the button, I used the followin...
Calling a static method on a generic type parameter
... someParent
{
List<T> items=(List<T>)typeof(T).GetMethod("fetchAll").Invoke(null,new object[]{});
//do something with items
}
Where T is any class that has the static method fetchAll().
Yes, I'm aware this is horrifically slow and may crash if someParent doesn't force all of i...
Long list of if statements in Java
...() implements Command {
void exec() {
// ...
}
}
// etc etc
then build a Map<String,Command> object and populate it with Command instances:
commandMap.put("A", new CommandA());
commandMap.put("B", new CommandB());
then you can replace your if/else if chain with:
co...
Difference between OData and REST web services
...methods, URL conventions, media types,
payload formats and query options etc. OData also guides you about
tracking changes, defining functions/actions for reusable procedures
and sending asynchronous/batch requests etc. Additionally, OData
provides facility for extension to fulfil any custom...
Fixed Table Cell Width
A lot of people still use tables to layout controls, data etc. - one example of this is the popular jqGrid. However, there is some magic happening that I cant seem to fathom (its tables for crying out loud, how much magic could there possibly be?)
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ssh: connect to host github.com port 22: Connection timed out
...guration data /home/ubuntu/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to github.com [13.234.176.102] port 22.
So I tried using an SSH connection made over the HTTPS port by editing the config fil...
Function overloading in Javascript - Best practices
...l just make your code slow and you have the fun of Arrays, nulls, Objects, etc.
What most developers do is tack on an object as the last argument to their methods. This object can hold anything.
function foo(a, b, opts) {
// ...
if (opts['test']) { } //if test param exists, do something..
}...
Sleeping in a batch file
...sys.argv[1]))
It will allow sub-second pauses (for example, 1.5 sec, 0.1, etc.), should you have such a need. If you want to call it as sleep rather than sleep.py, then you can add the .PY extension to your PATHEXT environment variable. On Windows XP, you can edit it in:
My Computer → Properties...
How do I make a Git commit in the past?
...repository is more complex (i.e. it has more than one ref (branches, tags, etc.)), then you will probably need to use git filter-branch. Before using git filter-branch, you should make a backup copy of your entire repository. A simple tar archive of your entire working tree (including the .git direc...