[SOLVED] Removing last character of filename (Batch)

[pooky2483]

I have a load of video files that I have converted and the program that did it has renamed them with a '1' at the end, e.g. Batman1.avi
What I now need to do, with a LOT of files is remove the '1' and leave the rest of the name intact. I have had a go with Krusader/Krename but don't know how to do it properly with either of them, if in fact it is possible with either of them, I have had a look through the instructions but don’t know if I have done it right?

[Mad Penguin]

How about something like this;

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for i in `ls`
do
 dst=`echo $i | sed -e "/1\./s//\./"`
 echo "mv -v $i $dst"
done

Caveat; untested and as-is, will just print the rename commands rather then execute ..
(remove the echo and quotes from the "mv" line to activate)
- Assumes regular filenames with only one "." in them ... (!)

[pooky2483]

I'm not that good on using terminal.
Do I enter each line in terminal?
If not, how do I do it?

[SeZo]

How about a one-liner (assuming the '1.avi' is constant and all files are in the same folder) :

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rename -v 1.avi .avi *1.avi

or non verbose:

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rename 1.avi .avi *1.avi

Just make sure to change into the directory first

[pooky2483]

How about a one-liner (assuming the '1.avi' is constant and all files are in the same folder) :

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rename -v 1.avi .avi *1.avi

I tried it and got;
pooky2483@pooky2483-ubuntu12:/media/Drive3/An Idiot Abroad/Season 01$ rename -v 1.avi .avi *1.avi
Bareword found where operator expected at (eval 1) line 1, near "1.avi"
   (Missing operator before avi?)
syntax error at (eval 1) line 2, near "1.avi
"
pooky2483@pooky2483-ubuntu12:/media/Drive3/An Idiot Abroad/Season 01$

[SeZo]

Hmm, that worked on Arch
It appears that Debian based distros implement the rename command differently, try this (untested not on Debian at the minute)

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rename -v 's/1.avi/.avi/' *1.avi

[Mad Penguin]

Just to be pedantic, the Unix/Linux command for renaming files is "mv" rather than "rename" ... :-)

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[SeZo]

Just to be pedantic, the Unix/Linux command for renaming files is "mv" rather than "rename" ... :-)

OK, the mv version (slightly longer) would be:

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for f in *1.avi; do mv "$f" "${f/1.avi/.avi}"; done

[Mad Penguin]

Sure, you can always condense stuff, indeed there was a Perl 'fad' (many years ago now) of seeing how much you could get on one line, or indeed writing an entire (complex) program on one line .. this sort of died out once people figured out that the next day they couldn't make head nor tail of what they'd just written ..

I was just pointing out that 'rename' isn't a standard command, rather it's a Perl script - Perl being the root of all evil in the scripting world and to be avoided at any cost ... ;-)

I must admit I'd not seen the inline pattern matching before (see my more verbose 'sed' example above) , is this standard in all shells, or specific to bash and / or dash


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[pooky2483]

OK, the mv version (slightly longer) would be:

Code: [Select]

for f in *1.avi; do mv "$f" "${f/1.avi/.avi}"; done

'Fraid nothing happened!

[SeZo]

'Fraid nothing happened!

That command is not verbose (would not print to screen)
Did you cd into the directory?
Also did you try the rename command?

[pooky2483]

Sorry, it DID work.
I had to COMPLETELY close 'window' - nautilus 'Drive3/An_Idiot_Abroad/Season_01/filename.avi'
when I just collapsed the window and re-opened it, there was no change visible?
Any idea why that is?

[SeZo]

Any idea why that is?

Nautilus (and other file managers) scan for changes in set intervals, not constantly, and eating up resources in the process.
All you had to do is click Refresh

[pooky2483]

I'm seriously going to have to get a book on terminal commands

[Mark Greaves (PCNetSpec)]

Sent from my rk30sdk using Tapatalk HD

I thought you had a Motorola Xoom ?

Are you going to do a mini review of the rk30sdk ?