jarsigner:tldr:0f122
jarsigner: Verify the signature of a JAR file.
$ jarsigner -verify ${filename-jar}
try on your machine
The command "jarsigner -verify ${filename-jar}" is used to verify the digital signature of a jar (Java Archive) file. Here's a breakdown of each component:
- "jarsigner": It is a command-line tool provided by the Java Development Kit (JDK) that signs and verifies Java archive files. It is used for adding digital signatures to JAR files.
- "-verify": This is an option used with the "jarsigner" tool to specify that we want to verify the digital signature of a JAR file.
- "${filename-jar}": This is a placeholder for the actual filename of the JAR file that you want to verify. This is typically provided by the user as an argument to the command.
To use this command, you need to replace "${filename-jar}" with the actual filename of the JAR file you want to verify. For example, if you have a file named "myapp.jar", you would run the command as "jarsigner -verify myapp.jar".
Running this command will verify the digital signature of the specified JAR file and display the result, such as whether the signature is valid or not. It helps to ensure the integrity and authenticity of the JAR file by confirming that it hasn't been tampered with since it was signed.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.