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When do we need curly braces around shell variables?
In shell scripts, when do we use {} when expanding variables?
7 Answers
7
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How do you use variables in a simple PostgreSQL script?
...'ll be able to use this is anything that is piped through to psql.. or any script that psql reads...
– Evan Carroll
Nov 1 '16 at 17:59
4
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How to integrate nodeJS + Socket.IO and PHP?
...! That the part that took me most of the time, because I didn't know which script include to be able to run Socket.IO code without the nodeServer (because client page will be served by Apache).
But everything is already done; when you install Socket.IO module with npm, a script is available in /nod...
【phpcms v9】PC站和手机站 全静态手机移动站方法 - 更多技术 - 清泛网 - ...
...个页面跳转地址不一样，灵活使用：
首页可以这样写
<script type=”text/javascript”>uaredirect(“http://m.aiguoxin.net”);</script>，栏目页的这样写
{if $page==”” or $page==”1″}
<script type=”text/javascript”>uaredirect(“http://m.aiguoxin.net/{$ca...
How to read from a file or STDIN in Bash?
The following Perl script ( my.pl ) can read from either the file on the command line args or from STDIN:
15 Answers
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gulp.run is deprecated. How do I compose tasks?
...atch', function () {
var server = ['jasmine', 'embed'];
var client = ['scripts', 'styles', 'copy', 'lint'];
gulp.watch('app/*.js', server);
gulp.watch('spec/nodejs/*.js', server);
gulp.watch('app/backend/*.js', server);
gulp.watch('src/admin/*.js', client);
gulp.watch('src/admin/*.css'...
Unauthorised webapi call returning login page rather than 401
...indow.location = "/Account/Login";
else if (xhr.status == 403)
alert("You have no enough permissions to request this resource.");
});
The result –
If user is not authenticated, then he will be redirected to a login
page after any AJAX-call.
If user is authenticated, but have no en...
Linux command or script counting duplicated lines in a text file?
...
Here is a simple python script using the Counter type. The benefit is that this does not require sorting the file, essentially using zero memory:
import collections
import fileinput
import json
print(json.dumps(collections.Counter(map(str.strip, fi...
How can I make a button redirect my page to another page? [duplicate]
...d="myButton" class="float-left submit-button" >Home</button>
<script type="text/javascript">
document.getElementById("myButton").onclick = function () {
location.href = "www.yoursite.com";
};
</script>
...
Cron and virtualenv
...&1
Another thing to try is to make the same change in your manage.py script at the very top:
#!/home/my/virtual/bin/python
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