Quoting "Dário \"P." <fbsd.questions.l...@gmail.com>:
Hello,
I have one directory with some pictures that I wanna rename (I use csh,
don't know if that matters).
For exemple, I have:
b.jpg
bs.jpg
bsd.jpg
And I wanna change to:
bsd1.jpg
bsd2.jpg
bsd3.jpg
I really appreciate if someone can help me. :)
Regards,
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Dario,
I'm not personally aware of any single commands which allow
substitution using a counter like you're asking, or of a decent way to
do what you're asking from the shell script either; however,
personally I'd write a simple Perl script to do it. The trick being to
be able to find the bsd###.jpg where it left off at in a directory so
you don't overwrite existing files if repeatability is important.
Here's something quick/dirty to work with, you can build from here,
but try copy/pasting the following code into a new Perl script and run
it from withing the directory you want to work:
#!/usr/bin/perl -w
use strict;
my @files = `ls`; # gets a list of all files in the current dir
# start a counter at zero, then increment it below:
my $cntr=0;
# set counter to the largest bsd###.jpg file in this directory:
map { if (/^bsd(\d+)\.jpg/) { $cntr = $1 if($1>$cntr); } }
grep(/bsd\d+\.jpg/,@files);
print "Left off last time at $cntr, going to start this time at
",++$cntr,".\n";
foreach (@files) {
chomp();
# skip all files which are already named bsd###.jpg
# or are not in ending .jpg
next if ($_ =~ /bsd\d+\.jpg/ || $_ !~ /(\.jpg)$/i);
my $new = $_;
# use a regular expression to substitute the name
# (note /i == case insensative so it will match '.JPG' as well)
$new =~ s/^(.+)\.jpg$/bsd$cntr\.jpg/i;
print "Renaming $_ to $new\n";
# un-comment the line below to actually do the rename:
# rename($_,$new);
$cntr++;
}
### END OF SCRIPT ###
An example given a directory with files like:
blah.Jpg
bs432.jpg
bsd11.jpg
bsl.jpg
uh-oh.jpG
yourSelf.JPG
Will give you an output like:
Left off last time at 11, going to start this time at 12.
Renaming blah.Jpg to bsd12.jpg
Renaming bs432.jpg to bsd13.jpg
Renaming bsl.jpg to bsd14.jpg
Renaming uh-oh.jpG to bsd15.jpg
Renaming youSelf.JPG to bsd16.jpg
My $0.02 ... like anything, sure you could do this 100 different other
ways, and sure it's not going to be really efficient for large
volumes, but in a pinch it'll work pretty reliably.
--
Nathan Vidican
nat...@vidican.com
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