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“You are on a branch yet to be born” when adding git submodule
...dule link, and the submodule repo itself must have a commit to check out.
Now, the submodule repo itself must be ok if you can create a regular clone elsewhere. However, it looks like submodule add complains if the repo is empty while clone does not. This guy suggests this is fixable by just runnin...
Script parameters in Bash
...h bar.sh $1
# cat foo2.sh
bash bar.sh "$1"
# bar.sh
echo "1-$1" "2-$2"
Now invoke:
$ bash foo.sh "a b"
1-a 2-b
$ bash foo2.sh "a b"
1-a b 2-
When you invoke foo.sh "a b" then it invokes bar.sh a b (two arguments), and with foo2.sh "a b" it invokes bar.sh "a b" (1 argument). Always have in mi...
Forgot “git rebase --continue” and did “git commit”. How to fix?
...base abort. Check the status to make sure the repo is in a state that you know had no problems and then start the fetch and rebase.
– yasouser
Jun 23 '11 at 17:33
18
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...过滤条件，则只能探测每次read()调用的结束时间，而不是now-start。
delete(@start[tid]): 释放变量。.
8. 统计进程级别的事件
# bpftrace -e 'tracepoint:sched:sched* { @[probe] = count(); } interval:s:5 { exit(); }'
Attaching 25 probes...
@[tracepoint:sched:s...
Responsive iframe using Bootstrap
...e-video">
<iframe ></iframe>
</div>
That’s it! Now you can use responsive videos on your site.
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How to make git diff --ignore-space-change the default
...p your ~/.gitconfig or ./.git/config/ and append
[apply]
whitespace = nowarn
It might also not let you commit something that only changes whitespace, but I'm sure you can overrule that with some flags.
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Are global variables in PHP considered bad practice? If so, why?
...m array ($obj, 'callbackMethod') in calls to preg_replace_callback()? (I know, I've fallen prey to this OOP pitfall...)
– grossvogel
Jul 1 '10 at 16:22
24
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Script Tag - async & defer
...
Faced same kind of problem and now clearly understood how both will works.Hope this reference link will be helpful...
Async
When you add the async attribute to your script tag, the following will happen.
<script src="myfile1.js" async></sc...
How can I make an svg scale with its parent container?
...0 10,0" />
</svg>
It will render as a 10px by 20px triangle:
Now, if you set only the width and height, that will change the size of the SVG element, but not scale the triangle:
<svg width=100 height=50>
<polygon fill=red stroke-width=0
points="0,10 20,10 10...
How do you create a read-only user in PostgreSQL?
...ble to create tables anyway
GRANT CREATE ON SCHEMA public to writeuser;
# Now create the read-only user
CREATE ROLE readonlyuser WITH LOGIN ENCRYPTED PASSWORD 'strongpassword';
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readonlyuser;
If your read-only user doesn't have permission to list tabl...