tren is a general purpose file and directory renaming utility. Unlike commands like 'mv', 'tren' is particularly well suited for renaming batches of files and/or directories with a single command line invocation. 'tren' eliminates the tedium of having to script simpler tools to provide higher-level renaming capabilities.
'tren' is also adept at renaming only part of an existing file or directory name either based on a literal string or a regular expression pattern. You can replace any single, group, or all instances of a given string in a file or directory name.
'tren' implements the idea of a renaming token. These are special names you can embed in your renaming requests that represent things like the file's original name, its length, date of creation, and so on. There are even renaming tokens that will substitute the content of any environment variable or the results of running a program from a shell back into the new file name.
'tren' can automatically generate sequences of file names based on their dates, lengths, times within a given date, and so on. In fact, sequences can be generated on the basis of any of the file's 'stat' information. Sequence "numbers" can be ascending or descending and the count can start at any initial value. Counting can take place in one of several internally defined counting "alphabets" (decimal, hex, octal, alpha, etc.) OR you can define your own counting alphabet. This allows you to create sequences in any base (2 or higher please :) using any symbol set for the count.
'tren' is written in pure Python and requires Python version 2.6.x or later. It is known to run on various Unix-like variants (FreeBSD, Linux, MacOS X, cygwin) as well as Windows. It will also take advantage of 'win32all' Python extensions on a Windows system, if they are present.
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Requirements:
· Python
What's New in This Release: [ read full changelog ]
· FIXED: Backups weren't being improperly named.
· FIXED: Changed TREN envvar processing to properly parse quoting.
· FIXED: Each renaming target must either be something that exists or a wildcard that expands to something that exists. Formerly, nonexistent renaming targets were silently ignored.
· NEW: Debug now shows the incremental change to each file name as each renaming request is applied left-to-right. Use -dq to see this more clearly.
· NEW: The environment variable TRENINCL is now supported. This allows you to specify a path to search when looking for include files.
· NEW: Implemented /NAMESOFAR/ renaming token.
· NEW: Added -e type case conversion option - new kind of renaming request.
· c - Capitalize
· l - Lower
· s - Swap case
· t - Title -> Char's followiing non-alpha are capitalized
· u - Upper
· NEW: Added -T option to allow user to "target" a substring of the full filename for renaming
· OTHER: Documentation additions and updates including clarification of old features, description of new features, and improved table-of-contents for PDF and PS document formats.
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