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How can I remove an SSH key?
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Copy the SSH key → GitLab Account → Setting → SSH Key → Add key
Test again from the terminal → ssh -T git@gitlab.com
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How do I see the extensions loaded by PHP?
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If you want to test if a particular extension is loaded you can also use the extension_loaded function, see documentation here
php -r "var_dump(extension_loaded('json'));"
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How to set tbody height with overflow scroll
...ay evenly the cells , use table-layout:fixed;
DEMO
CSS for your HTML test :
table ,tr td{
border:1px solid red
}
tbody {
display:block;
height:50px;
overflow:auto;
}
thead, tbody tr {
display:table;
width:100%;
table-layout:fixed;/* even columns width , fix width o...
Why is @autoreleasepool still needed with ARC?
...detach at least one NSThread
object, which can immediately exit. You can test whether Cocoa is in
multithreading mode with the NSThread class method isMultiThreaded.
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In Automatic Reference Counting, or ARC, the system uses the same
reference counting system as MRR, but it insertsthe ...
How to use HTML to print header and footer on every printed page of a document?
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I tested it on Firefox and Chrome. On Firefox this solution works, on Chrome not.
– Jaro
May 29 '13 at 7:47
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Why does Maven have such a bad rep? [closed]
...em, we had to rebuild from scrach rather often, reducing your code/compile/test cycle to an endless compile/websurf/sleep/die/code-cycle, sending you right back to the 90s and 40 minute compile times.
The only excuse for maven is the dependency resolution, but i would like to do that once in a whi...
Get exit code of a background process
...ariable $?. It just returns the exit code and $? is the exit code of the latest foreground program.
– MindlessRanger
Jun 7 '15 at 10:52
7
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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...crete, I want to exemplify a few extreme cases of time with some minimal C test programs.
All programs can be compiled and run with:
gcc -ggdb3 -o main.out -pthread -std=c99 -pedantic-errors -Wall -Wextra main.c
time ./main.out
and have been tested in Ubuntu 18.10, GCC 8.2.0, glibc 2.28, Linux k...
What's the difference between a catalog and a schema in a relational database?
...per host computer (or virtual OS). Multiple clusters is commonly done, for testing and deploying new versions of Postgres (ex: 9.0, 9.1, 9.2, 9.3, 9.4, 9.5).
If you did have multiple clusters, imagine the diagram above duplicated.
Different port numbers allow the multiple clusters to live side-by...
How to pass a parcelable object that contains a list of objects?
... into the website, and it generates a Parcelable version of your class.
I tested it with a class named "Theme" that contained the following variables:
private String name;
private int image;
private List<Card> cards;
The writeToParcel function becomes:
@Override
public void writeToParcel(...