command syntax

How do I rename multiple files at a shell prompt under Linux or UNIX operating systems?

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Explains how to make a backup (track by track) using dd command under UNIX / Linux operating system.

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The replace command is a string-replacement utility. It changes strings in place in files or on the standard input. This command uses a finite state machine to match longer strings first. It can be used to swap strings. This command is similar to the Perl -pie syntax or sed (stream editor) command.

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