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git-stripspace:tldr:3e6dc
This command is a combination of two commands, "cat" and "git stripspace", using a pipe "|" to connect them.
The "cat" command is used to concatenate and display the contents of a file (specified by the ${filename} variable) on the terminal. It reads the contents of the file and sends it to the standard output.
The "|" (pipe) symbol is a command-line operator that allows the output of one command to be used as the input for another command.
The "git stripspace" command is a Git command that removes unnecessary whitespace from the input. In this case, it takes the output of the "cat" command (the contents of the file) as its input and applies the stripping process to remove extra spaces, tabs, and blank lines.
In summary, the command "cat ${filename} | git stripspace" reads the contents of the file specified by ${filename}, passes it through "git stripspace" to remove unnecessary whitespace, and displays the modified content on the terminal.