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cvs:tldr:71f88
The command "cvs diff ${filename}" is used to compare the changes made to a file in a CVS (Concurrent Versions System) repository with the version present in the working directory.
Here's an explanation of the command components:
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"cvs diff": This is the CVS command that initiates the comparison process and displays the differences between versions of the file.
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"${filename}": This is a placeholder for the actual name of the file you want to compare. You need to replace "${filename}" with the real name of the file you are interested in.
By running this command, CVS will compare the specified file in the repository with the local version of that file present in your working directory. The command output will display the changes made to the file, including added lines, modified lines, and deleted lines.