rename:tldr:2093a

rename: Rename a group of increasingly numbered files zero-padding the numbers up to 3 digits.

rename

$ rename ${foo} ${foo00} ${foo?} && rename ${foo} ${foo0} ${foo??}

try on your machine

This command is using the rename utility to rename files or directories. Let's break it down step by step:

rename ${foo} ${foo00} ${foo?}: The ${foo} placeholder represents the original filename or directory name. This part of the command is attempting to rename the file or directory ${foo} to ${foo00}. The ${foo?} portion means that if ${foo} is a single character, it will be replaced with nothing, effectively removing it from the name.
&&: This is a logical operator that allows you to chain commands together. The command following && will only execute if the preceding command is successful (returns a zero exit status).
rename ${foo} ${foo0} ${foo??}: This part of the command is attempting to rename the file or directory ${foo} to ${foo0} using the same logic as before (${foo??} removes the last two characters if they exist).

In summary, this command renames files or directories using various patterns - ${foo} being the original name, ${foo00} and ${foo0} being new names with certain conditions for character removal.

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.

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