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Hidden features of Scala
...(see answer from oxbox_lakes above) that gives you access to the match groups. So you can do something like:
// Regex to split a date in the format Y/M/D.
val regex = "(\\d+)/(\\d+)/(\\d+)".r
val regex(year, month, day) = "2010/1/13"
The second line looks confusing if you're not used to using pa...
SQL - Select first 10 rows only?
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SELECT *
FROM (SELECT ROW_NUMBER () OVER (ORDER BY user_id) user_row_no, a.* FROM temp_emp a)
WHERE user_row_no > 1 and user_row_no <11
This worked for me.If i may,i have few useful dbscripts that you can have look at
Useful Dbscripts
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Is there a MySQL option/feature to track history of changes to records?
... ,
value ,
user_id ,
edit_time
)
VALUES
(
NEW.client_id,
'first_name',
NEW....
Yii2 data provider default sorting
...y' => $query,
'sort' => [
'defaultOrder' => ['user_id ASC, document_id ASC']
]
]);
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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
I have a .ps1 file in which I want to define custom functions.
7 Answers
7
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How to export/import PuTTy sessions list?
... file and will import cleanly if you have permission, otherwise use import.ps1 to load it.
Warning: messing with the registry like this is a Bad Idea™, and I don't really know what I'm doing. Use the below scripts at your own risk, and be prepared to have your IT department re-image your machine...
Bash: If/Else statement in one line
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There is no need to explicitly check $?. Just do:
ps aux | grep some_proces[s] > /tmp/test.txt && echo 1 || echo 0
Note that this relies on echo not failing, which is certainly not guaranteed. A more reliable way to write this is:
if ps aux | grep some_proces...
File extension for PowerShell 3
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PowerShell files for all versions are .ps1 (or .psm1, .psd1, etc.).
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How to kill zombie process
... sledge hammer):
# Don't do this. Incredibly risky sledge hammer!
kill $(ps -A -ostat,ppid | awk '/[zZ]/ && !a[$2]++ {print $2}')
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Retrieve CPU usage and memory usage of a single process on Linux?
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ps -p <pid> -o %cpu,%mem,cmd
(You can leave off "cmd" but that might be helpful in debugging).
Note that this gives average CPU usage of the process over the time it has been running.
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