大约有 40,000 项符合查询结果（耗时：0.0271秒） [XML]
Number of processors/cores in command line
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nice portable script :)
– mircealungu
May 14 '14 at 9:42
2
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Can I have multiple Xcode versions installed?
...and back again when done. It's a ball-ache, but seems to work.
This shell script simplifies it a bit…
xcode-version.sh
cd /Applications
if [[ $1 = "-8" ]]
then
if [ -e Xcode_8.app ]
then
mv Xcode.app Xcode_7.app
mv Xcode_8.app Xcode.app
echo "Swit...
How to get the value from the GET parameters?
...eturn params;
}
//var query = getQueryParams(document.location.search);
//alert(query.foo);
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Determine project root from a running node.js application
.../var/www/lib/module2/component.js
A great way to do this is using npm:
"scripts": {
"start": "NODE_PATH=. node app.js"
}
Now you can start your app with npm start and you're golden. I combine this with my enforce-node-path module, which prevents accidentally loading the app without NODE_PA...
Installing PDO driver on MySQL Linux server
... keep it and give up mysql_.
Several years ago the MySQL team published a script to migrate to MySQLi. I don't know if it can be customised, but it's official.
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How can I recall the argument of the previous bash command?
...ment from previous command
!^ - first argument (after the program/built-in/script) from previous command
!! - previous command (often pronounced "bang bang")
!n - command number n from history
!pattern - most recent command matching pattern
!!:s/find/replace - last command, substitute find with repl...
Uninstall Node.JS using Linux command line?
...an remove it using yum:
sudo yum remove nodejs
Note that using the curl script causes the wrong version of node to be installed. There is a bug that causes node v6.7 to be installed instead of v4.x intended by the path (../setup_4.x) used in the curl script.
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What is the 'new' keyword in JavaScript?
The new keyword in JavaScript can be quite confusing when it is first encountered, as people tend to think that JavaScript is not an object-oriented programming language.
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Search all tables, all columns for a specific value SQL Server [duplicate]
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I've just updated my blog post to correct the error in the script that you were having Jeff, you can see the updated script here: Search all fields in SQL Server Database
As requested, here's the script in case you want it but I'd recommend reviewing the blog post as I do update it ...
Why 0 is true but false is 1 in the shell?
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Bash is a programming (scripting) language, but it's also a shell and a user-interface. If 0 was error, then the program could only present one kind of error.
However in Bash, any nonzero value is an error, and we may use any number from 1-255 to...