Aug 20 2021
Remember that reversing a string in C++ is this easy:
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#include <iostream> #include <string> int main() { std::string myString = "Hello World!"; std::cout << myString << "\n"; std::reverse(myString.begin(), myString.end()); std::cout << myString << "\n"; } |
Aug 08 2021
I recently wanted to verify the hash of a file, named setup.exe, that was provided in a GnuPG signature file, named setup.txt.
I used the PowerShell code below to verify the expected SHA-256 hash contained within the setup.txt file against the actual hash of the setup.exe file. You can use this script by modifying the first two lines for your needs, i.e. the filenames.
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$exeFilename = "setup.exe" $sigFilename = "setup.txt" $algorithm = $algorithm = (cat $sigFilename | Select-String -Pattern "(?<=Hash: ).*$").Matches.Value.Trim() $expectedFileHash = (cat $sigFilename | Select-String -Pattern "^.*(?=( $exeFilename))").Matches.Value $actualFileHash = (Get-FileHash -Algorithm $algorithm $exeFilename).Hash.Trim() ($expectedFileHash -eq $actualFileHash) ? "Hashes match" : "Hashes do not match" |
This code/script was modified from https://www.christopherkeim.com/post/verify-file-hash-with-powershell.
Note that the GnuPG signature file, i.e. setup.txt, had the following format:
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 setup.exe -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 RG8geW91IGhhdmUgdG8gZGVhbCB3aXRoIEJhc2U2NCBmb3JtYXQ/IFRoZW4gdGhp cyBzaXRlIGlzIHBlcmZlY3QgZm9yIHlvdSEgVXNlIG91ciBzdXBlciBoYW5keSBv ZGUgb3IgZGVjb2RlIHlvdXIgZGF0YS4= =abcd -----END PGP SIGNATURE----- |
I also used regex help from:
Sep 06 2020
You can run the latest image version of using the following command:
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docker run -it mcr.microsoft.com/azure-powershell |
You can also run a specific version of Azure PowerShell using the following command:
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docker run -it mcr.microsoft.com/azure-powershell:3.6.1-ubuntu-18.04 |
If you want to just download and pull the images from the official Microsoft Container Registry (MCR) you can just run the docker pull commands.
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docker pull mcr.microsoft.com/azure-powershell |
Pull a specific version of Azure PowerShell using the following command:
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docker pull mcr.microsoft.com/azure-powershell:3.6.1-ubuntu-18.04 |
This content was borrowed from https://www.thomasmaurer.ch/2020/03/run-azure-powershell-in-a-docker-container/.
Jul 01 2020
Jun 28 2020
Sources: