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How to remove non-alphanumeric characters?
... need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces.
9 Answers
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Save Screen (program) output to a file
...e file : By default logfile name is "screenlog.0".
You can set new logfile name with the "-Logfile" option.
You can check the existing version of Screen using screen -version. You can download and install the latest Screen version from https://www.gnu.org/software/screen/.
...
Failed to install Python Cryptography package with PIP and setup.py
...raphy or by downloading the package from their site and running python setup.py , I get the following error:
25 Answers...
Why can't Python parse this JSON data?
I have this JSON in a file:
9 Answers
9
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.gitignore and “The following untracked working tree files would be overwritten by checkout”
...t may be because a file's name has had certain characters change case. Try setting the following config option:
git config core.ignorecase true
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How to get names of classes inside a jar file?
...ication.
Reflections reflections = new Reflections("my.project.prefix");
Set<Class<? extends SomeType>> subTypes = reflections.getSubTypesOf(SomeType.class);
Set<Class<?>> annotated = reflections.getTypesAnnotatedWith(SomeAnnotation.class);
...
Extract only right most n letters from a string
.../Check if the value is valid
if (string.IsNullOrEmpty(sValue))
{
//Set valid empty string as string could be null
sValue = string.Empty;
}
else if (sValue.Length > iMaxLength)
{
//Make the string no longer than the max length
sValue = sValue.Substring(sValue.Length - iMa...
How do I combine two data frames?
...se that you are working with big data and need to concatenate multiple datasets. concat can get performance-intensive, so if you don't want to create a new df each time, you can instead use a list comprehension:
frames = [ process_file(f) for f in dataset_files ]
result = pd.append(frames)
(as po...
How to restore the permissions of files and directories within git if they have been modified?
... alias to your git config...
git config --global --add alias.permission-reset '!git diff -p -R --no-ext-diff --no-color | grep -E "^(diff|(old|new) mode)" --color=never | git apply'
...and you can invoke it via:
git permission-reset
Note, if you shell is bash, make sure to use ' instead of " q...
How can I print the contents of a hash in Perl?
... - 4
- 5
- 6
Other times I will use Data::Dump. You don't need to set as many variables to get it to output it in a nice format than you do for Data::Dumper.
use Data::Dump = 'dump';
print dump(\%variable), "\n";
{ abc => 123, def => [4, 5, 6] }
More recently I have been usi...