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#1 2011-05-01 10:20:07
- inknoir
- Member
- Registered: 2009-06-28
- Posts: 29
[solved] recursive bulkrenaming
Hi, I have been using a renaming script from brisbin33, he was posting in "Handy self made command line utilities".
#!/bin/bash
#
# pbrisbin 2009
#
# take a retardedly named file or directory and rename it
# sanely
#
# adjust translate() as needed
#
###
message() { echo 'usage: renamer (--fake) <target> ...'; exit 1; }
# could always use more shit here...
translate() {
tr -d '\n' | tr -d '\t' | tr -d \' | tr -d \" |\
sed -r -e 's/.*/\L&/g' \
-e 's/[ -]/_/g' \
-e 's/_+/_/g' \
-e 's/^_|_$//g' \
-e 's/ä/ae/g' \
-e 's/ö/oe/g' \
-e 's/ü/ue/g' \
-e 's/ß/ss/g'
}
rfile() {
local dir old new
dir="$(dirname "$1")"
old="$(basename "$1")"
new="$(echo $old | translate)"
if [[ "$old" != "$new" ]]; then
if $fake; then
echo "$dir/$old --> $dir/$new"
else
mv -iv "$dir/$old" "$dir/$new"
fi
fi
}
rdir() {
local dir
while IFS='' read -d '' -r dir; do
rfile "$dir"
done < <(find "$1" -depth -print0)
}
[[ -z "$*" ]] && message
# allow a pretend run
if [[ "$1" = '--fake' ]]; then
fake=true
shift
else
fake=false
fi
# do it to it
for arg in "$@"; do
if [[ -d "$arg" ]]; then
rdir "$arg"
elif [[ -e "$arg" ]]; then
rfile "$arg"
else
message
fi
doneIt saved me years of lifetime...but I still have one problem with it. When there is a name collision (a file with that name already exists and the script can't proceed therefore) the script just stops. I would prefer it, if the script could rename the file anyways, but append a number to get a unique filename (img.jpg => img02.jpg). Then I could do the cleanup later.
Sadly my scriptingskills are almost nonexistent. I am not even sure, if I have to implement that logic in the rfile-/rdir-functions or in the "do it" part of the script. As I have absolutely no clue, a little help would be much appreciated.
Thanks.
Last edited by inknoir (2011-05-08 17:48:05)
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#2 2011-05-01 12:15:46
- MrX
- Member
- From: Bavaria
- Registered: 2010-07-10
- Posts: 9
Re: [solved] recursive bulkrenaming
You could try it like this (not tested):
# In rfile()
# ...
new="$(echo $old | translate)"
local i=1
while [[ -e "$new" ]]; do
let i++
# Note that this doesn't look very nice with filenames like "abc.tar.gz", as the number is inserted before the last "." (-> "abc.tar_2.gz")
new="${new%.*}_$i.${new##*.}"
# Alternatively, you can of course use the following (But this destroys the filename extension, e.g. "abc.jpg" becomes "abc.jpg_2"):
new="${new}_$i"
done
# ...Just choose one of the options and delete or comment the other line.
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#3 2011-05-01 13:45:24
- inknoir
- Member
- Registered: 2009-06-28
- Posts: 29
Re: [solved] recursive bulkrenaming
Hm, I must admit that I'm not sure if I placed your snippet at the right place/commented out the right lines. But what I've tried so far, didn't work. Could you please post the whole function, MrX? Thank you very much.
Btw, "new="${new}_$i" seems to me the better choice, since it doesn't collide with any existing numbering (for example when a files name is Movie01.avi).
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#4 2011-05-01 14:31:39
- MrX
- Member
- From: Bavaria
- Registered: 2010-07-10
- Posts: 9
Re: [solved] recursive bulkrenaming
rfile() {
local dir old new
dir="$(dirname "$1")"
old="$(basename "$1")"
new="$(echo $old | translate)"
local i=1
while [[ -e "$new" ]]; do
let i++
new="${new}_$i"
done
if [[ "$old" != "$new" ]]; then
if $fake; then
echo "$dir/$old --> $dir/$new"
else
mv -iv "$dir/$old" "$dir/$new"
fi
fi
}This seems to work.
Sorry, I should have posted the whole function before ;-)
// Edit: I only tested it with one file at first; Now i noticed my mistake
rfile() {
local dir old new
dir="$(dirname "$1")"
old="$(basename "$1")"
new="$(echo $old | translate)"
if [[ "$old" != "$new" ]]; then
if [[ -e "$new" ]]; then
local i=1
while [[ -e "${new}_$i" ]]; do
let i++
done
new="${new}_$i"
fi
if $fake; then
echo "$dir/$old --> $dir/$new"
else
mv -iv "$dir/$old" "$dir/$new"
fi
fi
}This time it should be correct ...
Sorry again.
Last edited by MrX (2011-05-01 14:47:44)
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#5 2011-05-01 15:22:03
- inknoir
- Member
- Registered: 2009-06-28
- Posts: 29
Re: [solved] recursive bulkrenaming
No problem 
Alas, it doesn't work with your snippet. If there is already a file with that name,it prompts me if I want to overwrite the file, then exits immediately (without waiting for any input).
I wonder if
'mv -iv "$dir/$old" "$dir/$new"' isn't wrong after your modification anyways. The -i option makes the moving interactive, which is not necessary, if there is no names colliding anymore. I changed the line to
'mv -v "$dir/$old" "$dir/$new"' Now it works again, but overwrites files, so it leaves your snippet unfunctional. 
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#6 2011-05-01 18:29:06
- inknoir
- Member
- Registered: 2009-06-28
- Posts: 29
Re: [solved] recursive bulkrenaming
It works like a charm now!
Dankeschön
Edit:
I thought it worked, because it had no problems with my small testfolder (10 files). On my audiofolder (30.000 files) I get the following output and it stops:
[~/bin] rename2.sh /intern/audio/
mv: overwrite `/intern/audio/oldies/janis_joplin/janis_joplin_little_girl_blue.mp3'? [~/bin]Edit2:
Nevermind, I am using vidir of the "moreutils" package, it works recursive and way faster than the script.
Last edited by inknoir (2011-05-08 17:50:38)
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