大约有 2,120 项符合查询结果（耗时：0.0110秒） [XML]
How to check Django version
...ze
and it will show your all component version including Django .
You can pipe it through grep to get just the Django version. That is,
josh@villaroyale:~/code/djangosite$ pip freeze | grep Django
Django==1.4.3
share
...
How to modify a global variable within a function in bash?
...hen output x.
There are many ways to archive this:
You cannot use shell pipes, because pipes run in different processes.
One can use temporary files,
or something like a lock file or a fifo. This allows to wait for the lock or fifo,
or different channels, to output the information, and then asse...
How do I request a file but not save it with Wget? [closed]
... what do the ampersand and greater than do in this command? can you just pipe the output to /dev/null ... wget -qO- | /dev/null ... ?
– T. Brian Jones
Mar 13 '12 at 20:22
...
Execute bash script from URL
...foobar <(curl -s http://example.com/myscript.sh) and it also works with pipes like so: curl -s http://example.com/myscript.sh | MYFLAG1=will_work MYFLAG2=foobar bash This of course requires that you use MYFLAG1 and MYFLAG2 instead of $1 and $2
– Bruno Bronosky
...
RAII and smart pointers in C++
...d when going out of scope.
Code:
void do_something() {
scoped_ptr<pipe> sp(new pipe);
// do something here...
} // when going out of scope, sp will delete the pointer automatically.
shared_ptr is for shared ownership. Therefor, it's both copyable and movable. Multiple smart pointe...
Nodejs - Redirect url
...ontent-Type": "text/html"});
fs.createReadStream("./path/to/404.html").pipe(response);
}
function onRequest (request, response){
switch (request.url){
case "/page1":
//statements
break;
case "/page2":
//statements
break;
...
Determine the process pid listening on a certain port
...ser $PORT/tcp extension syntax to POSIX (which work for coreutils) as with pipe:
pid=`fuser $PORT/tcp`
it prints pure pid so you can drop sed magic out.
One thing that makes fuser my lover tools is ability to send signal to that process directly (this syntax is also extension to POSIX):
$ fuser...
Add up a column of numbers at the Unix shell
...n('files.txt').read().split()))"
Or if you just want to sum the numbers, pipe into:
python3 -c"import sys; print(sum(int(x) for x in sys.stdin))"
share
|
improve this answer
|
...
30岁之后，程序员该向什么方向发展？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...牛的团队，希望有大牛来带我，以前就是因为没有大牛，无法提高，遇到了瓶颈。
当然，大牛固然重要，自己的学习能力和能动性更重要。不要老想着抱别人大腿，这样你永远会落在别人后面。
还有些人选择团队只是为了福...
Write lines of text to a file in R
...
tidyverse edition with pipe and write_lines() from readr
library(tidyverse)
c('Hello', 'World') %>% write_lines( "output.txt")
share
|
improv...