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Retrieve CPU usage and memory usage of a single process on Linux?
...r-of-iterations, use 2 because: When you first run it, it has no previous
sample to compare to, so these initial values are the percentages since boot.
-d 0.2: Delay-time(in second, here is 200ms)
-p 6962: Monitor-PIDs
tail -1: the last row
awk '{print $9}': the 9-th column(the cpu usage number)
...
Creating JS object with Object.create(null)?
...into a case where there are keys in the map that you never inserted. For example, if you did a lookup on toString, you would find a function, even though you never put that value there. You can work around that like this:
if (Object.prototype.hasOwnProperty.call(p, 'toString')) {
// we actually ...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
...iable way to do this would be to combine mkdir and cp:
mkdir -p /foo/bar && cp myfile "$_"
As an aside, when you only need to create a single directory in an existing hierarchy, rsync can do it in one operation. I'm quite a fan of rsync as a much more versatile cp replacement, in fact:
...
Very Long If Statement in Python [duplicate]
...ther_long_identifier and
here_is_another_long_identifier != and_finally_another_long_name):
# ... your code here ...
pass
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Row count with PDO
... statements around. What is the best way to get the row count using PDO in PHP? Before using PDO, I just simply used mysql_num_rows .
...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'
...permission issue. Running sudo chown -R _mysql:mysql /usr/local/var/mysql && sudo brew services restart mysql@5.7 solved the issue
– FooBar
Oct 26 '18 at 14:08
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How to add a 'or' condition in #ifdef
...f neither of them are defined, you'd use an AND: #if !defined(CONDITION1) && !defined(CONDITION2).
– cp.engr
Feb 20 '17 at 18:26
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How can I view live MySQL queries?
...SQL/MariaDB queries is to use debugger. On Linux you can use strace, for example:
sudo strace -e trace=read,write -s 2000 -fp $(pgrep -nf mysql) 2>&1
Since there are lot of escaped characters, you may format strace's output by piping (just add | between these two one-liners) above into th...
How to decode HTML entities using jQuery?
...odedString;
return textArea.value;
}
console.log(decodeEntities('1 & 2')); // '1 & 2'
This works similarly to the accepted answer, but is safe to use with untrusted user input.
Security issues in similar approaches
As noted by Mike Samuel, doing this with a <div> ...
How to find reason of failed Build without any error or warning
...
Delete .vs folder & restart VS, worked for me
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