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expand:tldr:a9af6
expand: Convert tabs in each file to spaces, writing to standard output.
$ expand ${filename}
try on your machine
The command "expand ${filename}" is typically used in UNIX or Linux systems to expand or uncompress a file.
Here, "${filename}" is a placeholder for the actual name or path of the file you want to expand. It should be replaced with the specific file name or path in order to use the command effectively.
When you run the command, the "expand" utility reads the specified file and replaces compressed sequences of multiple whitespace characters with tabs, thereby increasing the readability and reducing file size. After expanding, the file can be viewed and edited more conveniently.
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.