On Tuesday 07 November 2006 16:16, Richard Lyons wrote:
> For things like saving photos to hard disk, I tend to use a few bash
> scripts to rename the files, keeping the numerical part and coding
> something else in place of the "cimg". For example, I might change all the
> files cimg1234.jpg to cimg1299.jpg to be called foobar234.jpg to
> foobar299.jpg. I tend to modify these scripts when need arises, but the
> latest one shows an oddity I cannot understand.
>
> The script (called prep) is inline below. It removes $1 from the beginning
> of any filename in pwd and replaces it with $2, subject to a couple of
> sanity checks.
>
> Here is the output from a test run:
> --------
> [EMAIL PROTECTED]:~/test$ ls
> ohdear ohwonderful oops oopsdeardear tutdear
> [EMAIL PROTECTED]:~/test$ prep oops wer
>
> ... working
> oops -> wer
> oopsdeardear -> werdeardear
> 2 renamed --all done.
>
> [EMAIL PROTECTED]:~/test$ ls
> ohdear ohwonderful tutdear wer? werdeardear
> --------
> My question is: where did the question mark come from? It always occurs if
> the whole filename is substituted.
>
> Of course, someone will tell me there is a standard unix command to do
> this...
>
> richard
>
> --------here is the script:
> #!/bin/bash
> #
> prep
> # in present working directory, remove occurrences of a string at the start
> of # any filenames, and replace it by another string, subject to avoiding #
> duplicate or empty filenames
>
> # USAGE: prep [stringtoreplace [newstring] ]
>
> # have we an old string?
> if [ -n "$1" ] ; then
> old="$1" ;
> # if not, we ask for it
> else
> echo "enter initial string to be replaced " ;
> read -p "(if you leave this blank, new string will be prepended): " old ;
> fi
> lenold=${#old}
> #have we got a string to substitute?
> if [ -n "$2" ] ; then
> pre="$2" ;
> # if not, get string
> else
> if [ -z "$old" ] ; then
> prmpt="prepend" ;
> echo "you will prepend all filenames in pwd," ;
> else
> prmpt="substitute" ;
> echo "you will replace the initial string '$old' of filenames in pwd,"
> ; fi
> read -p " -- enter new string to $prmpt: " pre ;
> fi
>
> # and do the job
> echo ;
> echo "... working"
> for f in $old* ; do
> nowf=`basename "$f"`;
> subf="$pre${nowf:lenold}";
> if [ -n "$subf" ] ; then
> if [ -e "$subf" ] ; then
> echo " $f not renamed because $subf already exixts"
> else
> echo " $f -> $subf"
> mv "$f" "$subf"
> nr=$((co ++))
> fi
> else
> echo " $f not renamed to blank name"
> fi
> done
> echo " $co renamed --all done."
> echo ;
> --------end of script
I know this doesn't really directly address your question, but rox-filer has a
nice rename feature that I use to rename photos. I wish Konqueror had this
feature too.
Chris
--
C. Hurschler
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