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Does ruby have real multithreading?
...ple Ruby program which uses 3 threads using Ruby 2.1.0:
(jalcazar@mac ~)$ ps -M 69877
USER PID TT %CPU STAT PRI STIME UTIME COMMAND
jalcazar 69877 s002 0.0 S 31T 0:00.01 0:00.04 /Users/jalcazar/.rvm/rubies/ruby-2.1.0/bin/ruby threads.rb
69877 0.0 S 31T 0:00...
Can Powershell Run Commands in Parallel?
...easy to invoke a separate script file. Just use Start-Job -FilePath script.ps1 -ArgumentList $_
– Chad Zawistowski
Jun 16 '16 at 22:54
...
How to output something in PowerShell
..., if you call the script with redirected output, something like yourscript.ps1 > out.txt, you will get test2 on the screen test1\ntest3\n in the "out.txt".
Note that "test3" and the Write-Output line will always append a new line to your text and there is no way in PowerShell to stop this (that ...
How to debug a bash script? [closed]
...sts after they are expanded and before they are executed. The value of the PS4 variable is expanded and the resultant value is printed before the command and its expanded arguments.
That much does not seem to indicate different behaviour at all. I don't see any other relevant references to '-x' ...
Which is faster in Python: x**.5 or math.sqrt(x)?
...port math
N = 1000000
%%timeit
for i in range(N):
z=i**.5
10 loops, best of 3: 156 ms per loop
%%timeit
for i in range(N):
z=math.sqrt(i)
10 loops, best of 3: 91.1 ms per loop
Using Python 3.6.9 (notebook).
...
Copying files from Docker container to host
...gen is the container name I got from the following command:
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1b4ad9311e93 bamos/openface "/bin/bash" 33 min...
Exploring Docker container's file system
...r /bin/bash
see Docker command line documentation
Alternate method 1
Snapshotting
You can evaluate container filesystem this way:
# find ID of your running container:
docker ps
# create image (snapshot) from container filesystem
docker commit 12345678904b5 mysnapshot
# explore this filesystem...
How do I remove the “extended attributes” on a file in Mac OS X?
...23\ at\ 010212.png
# com.apple.FinderInfo
# com.apple.lastuseddate#PS
# com.apple.metadata:kMDItemIsScreenCapture
# com.apple.metadata:kMDItemScreenCaptureGlobalRect
# com.apple.metadata:kMDItemScreenCaptureType
2. Pick a Key to delete.
xattr -d com.apple.lastuseddate#PS ~/Des...
How can I extract embedded fonts from a PDF as valid font files?
...y they include just the subset of glyphs used in the document.
Using pdftops
One of the most frequently used methods to do this on *nix systems consists of the following steps:
Convert the PDF to PostScript, for example by using XPDF's pdftops (on Windows: pdftops.exe helper program.
Now fonts wil...
Force Java timezone as GMT/UTC
...Cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
PreparedStatement ps = conn.createPreparedStatement("update ...");
ps.setDate("DateColumn", dateValue, tzCal);
// Other assignments
ps.executeUpdate();
These will ensure that the value stored in the database is consistent when the database c...