大约有 48,000 项符合查询结果（耗时：0.0487秒） [XML]
How to exit if a command failed?
...am a noob in shell-scripting. I want to print a message and exit my script if a command fails. I've tried:
8 Answers
...
Send inline image in email
...achmentBase class (which LinkedResource inherits from) already creates it if needed.
– Andrew
Aug 11 '17 at 21:14
...
How to temporarily exit Vim and go back
...
What if I want to continue running my server while editing my file. For example, let's say I do nodemon app.js (nodemon refreshes the server on file edits for you) and then I want to return to my vim editing. Can I do that without...
Removing nan values from an array
...
If you're using numpy for your arrays, you can also use
x = x[numpy.logical_not(numpy.isnan(x))]
Equivalently
x = x[~numpy.isnan(x)]
[Thanks to chbrown for the added shorthand]
Explanation
The inner function, numpy....
Handling colon in element ID with jQuery
...ly I did a select 10'000 times of a div with a colon in the id - with the different methods to achieve it. Then I compared results to a ID selection with no colon in it, the results are quite surprising.
left time in ms
right selector method
299 $("#annoying\\:colon")
302 $("[id='annoying:colon']...
Appending a line to a file only if it does not already exist
...
Beautiful solution. This also works for triggering more complicated expressions, of course. Mine uses the echo to trigger a cat of a multiline heredoc into a config file.
– Eric L.
Jun 15 '15...
Looking for ALT+LeftArrowKey solution in zsh
...et in your terminal, creating compatibility issues when you switch shells (If you SSH into some other shell, switch from BASH to ZSH, etc and you lose some if not all of your keybindings).
Most shells have a set of default sequences that come pre-bound. Furthermore, while they aren't 100% consisten...
System.Net.WebException HTTP status code
...e something like this...
try
{
// ...
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
var response = ex.Response as HttpWebResponse;
if (response != null)
{
Console.WriteLine("HTTP Status Code: " + (int)response.Status...
Getting the path of the home directory in C#?
...
Matthew, you're right. I added a clarification on the original comment.
– sigint
Jul 17 '09 at 14:51
12
...
How to cut an entire line in vim and paste it?
...
Pressing Shift+v would select that entire line and pressing d would delete it.
You can also use dd, which is does not require you to enter visual mode.
share
...