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How to create a CPU spike with a bash command
...
You can also do
dd if=/dev/zero of=/dev/null
To run more of those to put load on more cores, try to fork it:
fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null & }; fulload; read; killall dd
Repea...
Java: How to get input from System.console()
... reserve). This way the BufferedInputStream makes less native calls to the OS to read from the file. Thanks
– Learner
Jan 1 '16 at 0:21
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Running script upon login mac [closed]
...h file to run when I log in to my account on my computer. I am running Mac OS X 10.6.7.
3 Answers
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How to print last two columns using awk
...ce>field2, (because it will use white space delimiter by default) as opposed to field1<tab>field2 which is probably what you're expecting. using Output Field Separator (OFS) is almost always what you want.
– DryLabRebel
Aug 6 at 22:51
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How to determine SSL cert expiration date from a PEM encoded certificate?
... command line to list multiple certificates in order of their expiration, most recently expiring first.
for pem in /etc/ssl/certs/*.pem; do
printf '%s: %s\n' \
"$(date --date="$(openssl x509 -enddate -noout -in "$pem"|cut -d= -f 2)" --iso-8601)" \
"$pem"
done | sort
Sample output:...
Addressing localhost from a VirtualBox virtual machine [closed]
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Googling turned this up: http://data.agaric.com/localhost-from-virtualbox-xp-install-ubuntu
It suggests using IP: http://10.0.2.2, and it worked for me.
So, I edited the hosts file, C:\windows\system32\drivers\etc\hosts, and added this entry:
10.0.2.2 outer
If you're tes...
The source was not found, but some or all event logs could not be searched
...is is an example on how windows discourage using the embedded tools in the OS
– Felice Pollano
Jul 7 '17 at 10:29
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Duplicate log output when using Python logging module
...ce, which causes the duplicate logs.
Perhaps something like this?
import os
import time
import datetime
import logging
loggers = {}
def myLogger(name):
global loggers
if loggers.get(name):
return loggers.get(name)
else:
logger = logging.getLogger(name)
logger...
How to build for armv6 and armv7 architectures with iOS 5
In iOS5 Apple drops the armv6 architecture from the ARCHS_STANDARD_32_BIT .
6 Answers
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Threading pool similar to the multiprocessing Pool?
...ssing.dummy which is mentioned briefly in the docs. This dummy module supposedly provides the whole multiprocessing interface based on threads.
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