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30 lines
877 B
Markdown
30 lines
877 B
Markdown
# rename
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> Rename a file or group of files with a regular expression.
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> WARNING: This command will overwrite files without prompting unless the dry-run option is used.
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> Note: This page refers to the Perl version, also known as `file-rename`.
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> More information: <https://manned.org/prename>.
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- Replace `from` with `to` in the filenames of the specified files:
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`rename 's/{{from}}/{{to}}/' {{*.txt}}`
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- Dry-run - display which changes would occur without performing them:
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`rename -n 's/{{from}}/{{to}}/' {{*.txt}}`
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- Change the extension:
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`rename 's/\.old$/\.new/' {{*.txt}}`
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- Change to lowercase (use `-f` in case-insensitive filesystems):
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`rename {{[-f|--force]}} 'y/A-Z/a-z/' {{*.txt}}`
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- Capitalize first letter of every word in the name:
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`rename {{[-f|--force]}} 's/\b(\w)/\U$1/g' {{*.txt}}`
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- Replace spaces with underscores:
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`rename 's/\s+/_/g' {{*.txt}}`
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