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Full Discussion: rename
Top Forums Shell Programming and Scripting rename Post 302182823 by bohoo on Monday 7th of April 2008 02:17:34 PM
Old 04-07-2008
rename

hi,

im doin an assignment which requires you to build a shell script to do the MS DOS style equivilant (sp?) of the rename function. What i have to do is a loop which checks the following rules and output messages (same):

Can't have anything after target
Can't have more than one dot
Can't have more than one asterisk
Doesn't exist
Must have a dot
No target

Targets consist of three parts: a dot, an asterisk and a string of filename characters. The dot is the middle one of the three. I have not started anything of yet as im stick on this first part and have little idea on how to do it. I an wondering if someone could give me a idea on how i would approach this. I have been told that a loop would be best.

Thanks
 

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RENAME(1)							   User Commands							 RENAME(1)

NAME
rename - rename files SYNOPSIS
rename [options] expression replacement file... DESCRIPTION
rename will rename the specified files by replacing the first occurrence of expression in their name by replacement. OPTIONS
-v, --verbose Give visual feedback which files where renamed, if any. -V, --version Display version information and exit. -s, --symlink Peform rename on symlink target -h, --help Display help text and exit. EXAMPLES
Given the files foo1, ..., foo9, foo10, ..., foo278, the commands rename foo foo0 foo? rename foo foo0 foo?? will turn them into foo001, ..., foo009, foo010, ..., foo278. And rename .htm .html *.htm will fix the extension of your html files. WARNING
The renaming has no safeguards. If the user has permission to rewrite file names, the command will perform the action without any ques- tions. For example, the result can be quite drastic when the command is run as root in the /lib directory. Always make a backup before running the command, unless you truly know what you are doing. SEE ALSO
mmv(1), mv(1) AVAILABILITY
The rename command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux June 2011 RENAME(1)
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