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How to port data-only volumes from one host to another?
...E:
# create a new data container
$ sudo docker create -v /data --name DATA2 busybox true
# untar the backup files into the new container᾿s data volume
$ sudo docker run --rm --volumes-from DATA2 -v $(pwd):/backup busybox tar xvf /backup/backup.tar
data/
data/sven.txt
# compare to the original con...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
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[Terminal #1] $ lockfile -r 0 /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] lockfile: Sorry, giving up on "/tmp/the.lock"
[Terminal #1] $ rm -f /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] $
After /tmp/the...
DateTime to javascript date
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edited Mar 8 '10 at 20:51
answered Mar 8 '10 at 19:55
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Assign output of a program to a variable using a MS batch file
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edited Dec 8 '15 at 13:12
Wolf
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answered Feb 26...
How to 'minify' Javascript code
... Production (19KB, Minified and Gzipped) , and the other is Development (120KB, Uncompressed Code) .
9 Answers
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How to check if an array field contains a unique value or another array in MongoDB?
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2 Answers
2
Active
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rotating axis labels in R
...able(Ni <- stats::rpois(100, lambda=5))
r <- barplot(tN, col=rainbow(20), las=1)
That represents the style of axis labels. (0=parallel, 1=all horizontal, 2=all perpendicular to axis, 3=all vertical)
share
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Why is it slower to iterate over a small string than a small list?
... closer to 70% (or more) once a lot of the overhead is removed, for Python 2.
Object creation is not at fault. Neither method creates a new object, as one-character strings are cached.
The difference is unobvious, but is likely created from a greater number of checks on string indexing, with regards...
What is the difference between async.waterfall and async.series
The nodejs async module: https://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series .
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Python extending with - using super() Python 3 vs Python 2
...super() -> same as super(__class__, self)
so that would be the Python 2 equivalent for new-style classes:
super(CurrentClass, self)
for old-style classes you can always use:
class Classname(OldStyleParent):
def __init__(self, *args, **kwargs):
OldStyleParent.__init__(self, *args...