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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...er Port Status Owner Data directory Log file
11 main 5432 online postgres /var/lib/postgresql/11/main /var/log/postgresql/postgresql-11-main.log
$ sudo systemctl stop postgresql@11-main
$ sudo pg_dropcluster --stop 11 main
$ sudo pg_createcluster --start 11 main
Option B
If yo...
What is the HEAD in git?
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edited Nov 30 '16 at 12:30
Maroun
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How to replace captured groups only?
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383
A solution is to add captures for the preceding and following text:
str.replace(/(.*name="\w+...
Better way to set distance between flexbox items
... child and between each child and their parent.
Demo
.upper
{
margin:30px;
display:flex;
flex-direction:row;
width:300px;
height:80px;
border:1px red solid;
padding:5px; /* this */
}
.upper > div
{
flex:1 1 auto;
border:1px red solid;
text-align:center;
margin:5px; /...
How to get the last element of an array in Ruby?
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edited Dec 26 '11 at 23:15
answered Dec 26 '11 at 23:07
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How do I put a variable inside a string?
.... For more details, see the Python documentation:
https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting
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How to prevent gcc optimizing some statements in C?
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3 Answers
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Which is the preferred way to concatenate a string in Python?
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443
The best way of appending a string to a string variable is to use + or +=. This is because it's ...
How to remove item from array by value? [duplicate]
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37 Answers
37
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How many characters can UTF-8 encode?
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136
UTF-8 does not use one byte all the time, it's 1 to 4 bytes.
The first 128 characters (US-A...