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Check if Python Package is installed
...:
pip3 show package_name 1>/dev/null #pip for Python 2
if [ $? == 0 ]; then
echo "Installed" #Replace with your actions
else
echo "Not Installed" #Replace with your actions, 'pip3 install --upgrade package_name' ?
fi
...
Disable HttpClient logging
... and are running on a JRE that's 1.4 or above (which you really should be) then it will probably be sending its log messages to the JDK logging (java.util.logging)
Relying on Commons-Logging's autodiscovery mechanism is prone to error. Simply adding log4j.jar onto the classpath would cause it to swi...
Where does VBA Debug.Print log to?
...rint outputs to the "Immediate" window.
Also, you can simply type ? and then a statement directly into the immediate window (and then press Enter) and have the output appear right below, like this:
This can be very handy to quickly output the property of an object...
? myWidget.name
...to se...
How can I limit a “Run Script” build phase to my release configuration?
...
if [ "${CONFIGURATION}" = "Release" ]; then
echo Do something really release-like
fi
The script will run at the end of every configuration, but it won't do anything in this case unless the configuration is Release (assuming everything it does is contained with...
EF Code First “Invalid column name 'Discriminator'” but no inheritance
...y = modelBuilder.Entity<EntityObject>().ToTable("ENTITY_TABLE"), and then another line using either the same EntityObject or the same ENTITY_TABLE.
– Mathijs Flietstra
Nov 6 '17 at 13:23
...
how does Array.prototype.slice.call() work?
...r the hood is that when .slice() is called normally, this is an Array, and then it just iterates over that Array, and does its work.
How is this in the .slice() function an Array? Because when you do:
object.method();
...the object automatically becomes the value of this in the method(). So with...
Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
...
So:
^(.{0,7}|[^0-9]*|[^A-Z]*|[a-zA-Z0-9]*)$
If anything matches that, then it's an invalid password.
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How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]
...windows-x64.exe .rsrc/JAVA_CAB10/111 7z e 111 7z x -ojdk_dir tools.zip and then delete the temporary 111 and tools.zip files and do the unpacking. The unpacking under msys/cygwin can be done with: find jdk_dir -name "*.pack" -exec sh -c 'jdk_dir/bin/unpack200 -r "{}" "$(dirname "{}")/$(basename "{}"...
How to change current working directory using a batch file
... @josch: Yes, if we are talking about CMD's internal commands, then switch parameters like /D above are case-insensitive (/D = /d), just like the commands themselves (CD = cd). I believe that is also true for all external Windows command-line utilities (like FINDSTR, SORT etc.) Third-par...
How to migrate/convert from SVN to Mercurial (hg) on windows
...ry to Mercurial?
You must install svn-win32-1.4.6 command line tools, then add them to your path. Then you must enable the convert extension. At this point, you should be able to use the 'hg convert' command to do the conversion. Please direct problems/questions about the convert extension to t...