git-hash-object:tldr:690b7

The command git hash-object -t ${select} ${filename} is used to compute the SHA-1 hash of a file and optionally store it in the Git object database.

Here is a breakdown of the command:

• git hash-object: This is the Git command used to compute the SHA-1 hash of an object.
• -t ${select}: This option specifies the type of object to create. ${select} should be replaced with the type of object you want to create. For example, you can specify -t blob to create a blob (file) object.
• ${filename}: This is the name of the file for which you want to compute the hash. ${filename} should be replaced with the actual file name.

When you run this command, Git will calculate the SHA-1 hash of the file and display it as the output. If you want to store the object in the Git object database, you can redirect the output of the command to a file using git hash-object -t ${select} ${filename} > ${outputfile}. The ${outputfile} should be replaced with the desired file name.

This command can be useful for a variety of purposes, such as manually adding objects to the Git database or verifying the integrity of files in the repository.