Posts (page 109)
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4 min readTo get the line number of an error in PowerShell, you can use the $error variable to access the most recent error object. The ErrorRecord object contains properties such as ScriptStackTrace that provide information about where the error occurred, including the line number. You can use this information to determine the line number of the error in your script or command. Additionally, you can use the $error[0].InvocationInfo.
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4 min readTo remove the path and get the filename in Rust, you can use the PathBuf and Path traits provided by the standard library.First, you need to create a PathBuf object from your file path. Then you can use the file_name() method provided by the Path trait to extract the filename as an Option. Finally, you can convert the OsStr to a String using the to_string_lossy() method.
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4 min readIn PowerShell, you can pass arguments to a Python script by using the ampersand (&) operator followed by the path to the Python executable and the path to the Python script. You can then provide the arguments to the script separated by spaces after the script file path. For example, to pass arguments to a Python script named "myscript.py" with arguments "arg1" and "arg2", you would use the following command: & "C:\Python\python.
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4 min readIn Rust, a "blanket implementation" refers to the concept of implementing a trait for all types that satisfy certain requirements without having to explicitly define the implementation for each individual type. This allows for generic code that can work with a wide variety of different types that share common characteristics.
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4 min readTo detect camelcase using PowerShell, you can use a regular expression to check if a string follows the camelcase convention. Camelcase typically consists of multiple words joined together where each word, except the first one, starts with a capital letter. You can use a regular expression pattern that matches this format to check if a given string follows camelcase.
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6 min readTo export a CSV to Excel using PowerShell, you can use the Export-Excel cmdlet from the ImportExcel module. First, you need to install the ImportExcel module using the following command: Install-Module -Name ImportExcel. Once the module is installed, you can use the Export-Excel cmdlet to export the CSV file to an Excel file. Here is an example command to export a CSV file named 'data.csv' to an Excel file named 'output.xlsx':Import-Csv data.csv | Export-Excel -Path output.
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5 min readIn Rust, the symbol "|_|" is often used as a shorthand way to define a closure that takes no arguments. This syntax is commonly used in Rust to create anonymous functions or closures that can be passed as arguments to higher-order functions or used in other contexts where a function pointer is expected.
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2 min readTo open Command Prompt from PowerShell, you can type cmd and press Enter. This will launch the Command Prompt window from within the PowerShell session. Alternatively, you can also use the Start-Process cmdlet with the -FilePath parameter to open Command Prompt. Simply type Start-Process cmd and hit Enter to open Command Prompt from PowerShell.[rating:69124b1f-7719-4c02-b18b-990e9c9271ea]How to open a new command prompt window in a specific location from powershell.
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7 min readTo call C++ methods from Rust, you can use the Foreign Function Interface (FFI) provided by Rust. This allows you to define C functions in Rust that can be called from C++ code.To do this, you need to create a C API for your C++ code that exposes the methods you want to call from Rust. This involves creating C functions that wrap the C++ methods, and declaring them in a header file.In your Rust code, you can use the extern keyword to define the C functions you want to call.
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3 min readTo install .msi using PowerShell, you can use the Start-Process cmdlet with the -FilePath parameter to specify the path to the .msi file you want to install. You can also use the -Arguments parameter to specify any additional arguments needed for the installation. Additionally, you can use the -Wait parameter to make PowerShell wait for the installation process to complete before continuing with the script.
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4 min readIn Rust, static variables are global variables that are accessible throughout the entire program. To write a collection of static variables in Rust, you can use the lazy_static crate. This crate provides a convenient way to declare static variables that are lazily initialized on first access.First, add lazy_static = "1.4.0" to your Cargo.toml file to use the lazy_static crate. Then, import the crate in your Rust file with #[macro_use] extern crate lazy_static;.
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4 min readTo parse the output in PowerShell, you can use various techniques such as splitting the output into different parts using delimiter, using regular expressions to extract specific information, or converting the output into objects and then manipulating them using PowerShell cmdlets. By parsing the output effectively, you can extract and use the relevant information for further processing or analysis.[rating:69124b1f-7719-4c02-b18b-990e9c9271ea]What is the purpose of parsing output in PowerShell.